1/2", 18 Port Compression MANABLOC (8 hot, 10 cold) Zoom
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1/2", 18 Port Compression MANABLOC (8 hot, 10 cold)

SKU:36183

Brand: Viega

Viega
Qty Price
$149.95
/ each
$434.85 / box (3 units x $144.95)
In Stock! Ships in 24-48 Hours
(37 Available)
8

Resources

Specs

Loop Size: 1/2"
Number of Outlets: 18
Number of Outlets (Cold): 10
Number of Outlets (Hot): 8
Outlet Type: PEX
Material: Plastic
Application: Plumbing
Fitting System Compatibility: PEX Compression
Tubing Compatibility: PEX
Warranty: 10 Years

Description for Viega 36183

Please Note:

  • Supply adapters must be purchased separately and are required to install this product.
  • Mounting straps are pre-drilled to mount 16" center studs. They are optional and sold separately.
  • The 10-year warranty only applies if this MANABLOC is installed with all Viega products.
  • The MANABLOC Wrench allows you to easily tighten the lock-in nuts for this MANABLOC with precision. This item must be purchased separately, as it is not required but highly recommended.
  • 53601: MANABLOC Supply End Cap does not come included and must be purchased separately.


Compression MANABLOCs provide a home-run distribution manifold for the plumbing system. These MANABLOCs utilize either 3/8" or 1/2" distribution ports. Each MANABLOC comes factory pre-assembled with color coded hot and cold ports. All Compression MANABLOCs include port compression connections, drill templates, instruction guide, faceplate and port labels.

**Important**
  • The MANABLOC plumbing system carries a maximum pressure/temperature rating of 100 psi @ 180°F. Excessive pressure to the MANABLOC will cause leaks.
  • Do not allow chemicals such as PVC glues or solder flux to come into contact with the MANABLOC. They will compromise the integrity of the MANABLOC and cause leaks.
  • Please consult the MANABLOC install instructions for a more comprehensive list of chemical materials that will cause harm to the MANABLOC plumbing system.

1/2", 18 Port Compression MANABLOC (8 hot, 10 cold)

REVIEW SNAPSHOT®

by PowerReviews
Viega1/2", 24 Port Compression MANABLOC (9 hot, 15 cold)
 
4.7

(based on 136 reviews)

Ratings Distribution

  • 5 Stars

     

    (108)

  • 4 Stars

     

    (22)

  • 3 Stars

     

    (5)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (0)

98%

of respondents would recommend this to a friend.

Most Liked Positive Review

 

Great Product

Great product, easy to work with and great instructions. Does a good job of equalizing pressure/flow for individual fixtures (my house was run is series before) and it looks cool if you're...Read complete review

Great product, easy to work with and great instructions. Does a good job of equalizing pressure/flow for individual fixtures (my house was run is series before) and it looks cool if you're neat about it.

VS

Most Liked Negative Review

 

Smart Design with some Negatives

Looked around for a good manifold system and this one impressed me for the most part, but the negative about this product is in the valves. I purchased the 18 port compression version with...Read complete review

Looked around for a good manifold system and this one impressed me for the most part, but the negative about this product is in the valves. I purchased the 18 port compression version with 1/2" ports, but was very disappointed in the valve port itself, which is only a 5/16" of an inch opening. Viega did not do anybody justice for using 1/2" PEX ports on this system when you are restricting the flow at the port with an opening of 5/16", the 3/8" version Manabloc probably would have had the same flow. Viega needs to redesign this unit with FULL PORT vales to give the customer 1/2" flow. Realizing that 1/2" PEX tubing is still only 3/8" ID, but at least you would have a full flow through the tubing and not a restriction at the valve. BAD design on Viega's part. Hope this helps others looking at flow through rates, pressure, etc.

Reviewed by 136 customers

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5.0

Review of Viega ½", 24 Port Compression

By ET

from Hudson, OH

Verified Buyer

Comments about 1/2", 24 Port Compression MANABLOC (9 hot, 15 cold):

I purchased the 24-port Viega compression fitting manifold to replace a 24-port Vanguard Manabloc unit in my home. The original construction (built in 1997) used a combination of PB & PEX pipe (I have no idea what possessed the builder to mix piping materials - perhaps that is what his sub had available). The original manifold had developed a leak in one of the block sections. I suspect root cause was O-ring failure. Viega customer service guidance is that Manabloc O-rings are not replaceable as the manifold is assembled & pressure tested prior to shipment. The entire modular stack is pre-tensioned at the factory, thereby compressing the O-rings to the designed level of squeeze.

As other reviews have noted, the old Vanguard manifold had a gap where the hot/cold block-off plate was located. Depending upon the amount of slack available in the original piping installation, this could pose a problem in making port connections. I was fortunate in that Viega's design and tooling carried over from the Vanguard Manabloc design – this was critical in making the port connections, as I utilized all Vanguard port connection fittings to the new Viega manifold.

Making manifold connections with the compression fittings is best done using the unique Manabloc wrench (purchased separately). Given the tight center-to-center distance between ports, I highly recommend purchasing this special wrench, as it cuts hours off the job and enables proper torque for leak-free connections. Pressure testing following port connection confirmed all connections were leak-free.

Water supply connection to the manifold was made with Viega compression connections and ¾" Rifeng PEX crimp rings using a Watts crimp-all tool (purchased separately from SupplyHouse). The Watts crimp tool provided secure crimps the first time without issue.

My compliments to the entire team at SupplyHouse – customer service was nothing short of world-class, as they promptly and efficiently handled the numerous questions I had regarding manifold replacement, mating old compression fittings with the new manifold, dimensions of the replacement unit, etc. Also, the online videos they make available through their website are very informative and empowering.

As a DIY endeavor, I found this to be a challenging project requiring a significant investment in time to research replacement parts & installation technique which ultimately produced a satisfactory result at a reasonable cost. Although I have an engineering background, I am not sure I would have tackled this project without the knowledge (and confidence) provided by the videos, manufacturer's installation manual and other documentation SupplyHouse makes available online. I would not hesitate to tackle another plumbing project with the SupplyHouse team of professionals by my side.

 
4.0

Easy Install

By Nosedive225

from Albany NY

Verified Buyer

Comments about 1/2", 24 Port Compression MANABLOC (9 hot, 15 cold):

So far so good. Easy to install and connect pex with compression fittings supplied with the manifold using the manabloc wrench.

 
5.0

easy to work with

By pipe

from des moines ia

Verified Buyer

Comments about 1/2", 24 Port Compression MANABLOC (9 hot, 15 cold):

easy to install

 
5.0

EASY INSTALL

By BIGBOY

from HOUSTON,TEXAS

Verified Buyer

Comments about 1/2", 24 Port Compression MANABLOC (9 hot, 15 cold):

GREAT PRODUCT WELL MADE MAKES FOR A EASY INSTALL FOR A DO IT YOURSELFER.

 
3.0

Not quite the perfect replacement

By aflyingswan

from anchorage, AK

Verified Buyer

Comments about 1/2" / 3/8" 30 Port Combination MANABLOC:

I purchased this to replace a previous manabloc that had developed a leak. unfortunately not all the sizes of the ports matched the previous installation (some were 3/8" where previously were 1/2"). It required getting some adapters. This was due to the contractor installation of the previous manafold rather than the manufacturer. It did however necessatate a delay in installing doing to having trouble finding adapters.

 
5.0

Just the greatest

By Dad

from New Nork

Verified Buyer

Comments about 1/2", 18 Port Compression MANABLOC (8 hot, 10 cold):

Just the best item for the money

 
4.0

Works well

By G

from Cincinnati, OH

Verified Buyer

Comments about 1/2", 24 Port Compression MANABLOC (9 hot, 15 cold):

The manifold installed easily... make sure to install the inlet port and water heater connections prior to connecting the hoses. The hoses can put enough torque where crossthreading the plastic threads can become a problem. I got lucky.

 
5.0

Manabloc 36 port

By Metalquirks

from Oak Harbor, Washington

Verified Buyer

Comments about 1/2", 36 Port Compression MANABLOC (14 hot, 22 cold):

A perfect new construction addition to any plumbing system. I'm very pleased with the product and the service I have received from Supply House. Supply House is my go to source for all my projects have not found better prices anywhere.

 
5.0

A really good buy for the money

By Performance Builder

from Texas

Verified Buyer

Comments about 1/2", 18 Port Compression MANABLOC (8 hot, 10 cold):

Hello to all you supplyhouse.com visitors,
as a builder/ remodeler, I've used this product before and will continue to use it in future home building and renovation projects. The Manablock water supply manifold is a domestic use only product. The directions for installation are simple, but clear. This having been said though, Supplyhouse also has very complete product information resources on their website including detailed videos of all aspects of this product. For the money, it's a great buy. do bear in mind though it is constructed of plastic. some care should be taken not to let it get knocked around before and during installation. Once installed however, it is a solid and virtually maintenance free product. Also because of it's plastic construction, make sure it is not located in a place where it could freeze. Being plastic though, it wont be corroded by hard or poor water quality as metal manifolds would be. For the money, this product is reliable and an awesome alternative to it's more expensive counterparts and works as advertized. Also as a side note to you all, Supplyhouse has provided excellent product and customer support to me over the years. The prices have always been very competive and products have been received typically within 3-4 buisness days of ordering. Good luck in all your endeavors! ~Patrick

 
5.0

Just what i wanted

By the trucker

from irvington .nj

Verified Buyer

Comments about 1/2", 24 Port Compression MANABLOC (9 hot, 15 cold):

I'm redoing plumbing in a hundred year old house, with this system and pex-a piping makes the job very easy. I like the fact that each faucet have a direct feed I use the pex-a which is manageable and easy to work with. I would definitely recommend this product

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Q&A: Ask the Questions, share answers

Do you have questions about this product?

get answers from real customers and in-house experts with AnswerBox.

48 Questions | 79 Answers
Displaying questions 1-10Previous | Next »
  • 3/8"", 24 Port Compression MANABLOC (9 hot, 15 cold)

    Q:

    Is there a divider plate between the upper 9 cold water connections and the lower 6 cold water connections? I have a hard water feed and a soft water feed for my current system.
    Asked on 4/10/2014 by Elemental Plumbing from Las Vegas, NV

    1 answer

    • CUSTOMER CARE

      A:

      No, the cold connections on this manabloc are all connected.

      Answered on 4/24/2014 by SupplyHouse Staff from NY
  • 1/2", 18 Port Compression MANABLOC (8 hot, 10 cold)

    Q:

    I found out about this unit via you tube video and was shocked at how easy it looks. One thing the video shows is, transition fitting for this unit along with inlet cap. My question is, do these items come with the unit
    Asked on 10/22/2013 by airborne from Tobyhanna, Pa

    4 answers

    • CUSTOMER CARE

      A:

      All fittings for the 1/2" outlets are included, but supply adapter fittings and a supply end cap are not included.

      Answered on 11/1/2013 by PexSupply Staff from NY
    • VERIFIED BUYER

      A:

      Not sure what the "transition fitting" is but I bought and installed this manifold in my new home and everything I needed to attach my ½ inch pex domestic water lines was included. I did not get a wrench to tighten the hex nut as the tubing is tightened onto the threads and that would have been helpful but I have a large crescent and that works as well it's just slower.

      Answered on 10/25/2013 by Charlie from Harmony (Laramie) Wyoming
    • VERIFIED BUYER

      A:

      You need to use Manabloc supply adapters because they Manabloc has
      proprietary threads. Supply adapters are not included with the manifold
      because there are different sizes and connection methods available. This
      video may also be helpful: http://www.youtube.com/watch?v=nEqAo3bqJsk

      Answered on 10/23/2013 by Mike
    • VERIFIED BUYER

      A:

      I believe I know what you are talking about and the answer is no! I purchased a regular 3/4 inch threaded pex fitting and used a shark bite fitting for the transition!
      Sent from my iPhone

      Answered on 10/22/2013 by Anonymous
  • 1/2", 14 Port Compression MANABLOC (6 hot, 8 cold)

    Q:

    What is the bottom port for on a manabloc
    Asked on 10/21/2013 by Curious from Alaska

    1 answer

  • 1/2", 30 Port Compression MANABLOC (12 hot, 18 cold)

    Q:

    The Viega 36303 indicates that it can accommodate 3/8" or 1/2" distribution ports. How is this accomplished? Is there a reducer attached to the standard 1/2" distribution port to get it to 3/8" or do you have to specify whether you want 1/2" or 3/8" ports when you order it? Can you mix the two sizes in the manifold?
    Asked on 10/16/2012 by Rodge

    2 answers

    • VERIFIED BUYER

      A:

      I have only ever used 1/2" port and line. I think there are 1/2 port compression fittings for 3/8 line. But why use 3/8 line?
      Please consider the environment before printing this email

      Answered on 10/16/2012 by Anonymous
    • CUSTOMER CARE

      A:

      MANABLOCs in general (including compression models) can accommodate 3/8" or 1/2" outlet lines, but you need to specify what you want prior to purchasing a compression MANABLOC. There are two types of thread that you'll find on MANABLOC outlet ports: one that works with 3/8" compression fittings and one that works with everything else (i.e. 1/2" compression, press, & crimp; and 3/8" press & crimp). This means that you can buy interchangeable port fittings after ordering the MANABLOC, unless 3/8" compression is in the mix. For this reason, Viega offers "combination" compression MANABLOCs with some 1/2" and some 3/8" ports.

      Answered on 10/26/2012 by PexSupply Staff from NY
  • 3/8", 14 Port Compression MANABLOC (6 hot, 8 cold), Zero Lead

    Q:

    I intend to install two 14 port Manablocs,of the compression connect type. One Manabloc to handle 1/2 inch pex and the other to handle 3/8 inch pex,plumbing fixtures as suggested by the Viega Manabloc manual in regards to point of use,ie: 3/8" for bathroom sink and 1/2" for tubs and shower as examples. Will such use be complicated due to need to split the water supplies,both hot and cold? If that causes problems what can be done to overcome said problems? I intend to use a plumber for the install but would like to go ahead and order the devices, pex and fittings.Thank you
    Asked on 9/17/2012 by Walt from Morris County,New Jersey

    1 answer

    • CUSTOMER CARE

      A:

      Splitting the supplies would not be a problem. You would still have the same amount of water feeding the same number of fixtures. You may also want to consider a "combination" compression MANABLOC, which has some 1/2" and some 3/8" distribution ports. The biggest problem with using 3/8" tubing is that it is difficult to find fittings to make connections at fixtures.

      Answered on 9/28/2012 by PexSupply Staff from NY
  • 1/2", 36 Port Compression MANABLOC (14 hot, 22 cold)

    Q:

    I have a Vanguard 36 Port compression MANABLOC (installed 1990). It has the hot and cold ports opposite that which are shown in the picture.

    A port has started to leak, so I guess I need to replace the entire unit.

    What part should I order so that when the single supply port is at the bottom the hot ports are on the top right and the cold ports are on the left and 4 bottom right?
    Asked on 8/30/2012 by Dan from Hagerstown, MD

    3 answers

    • VERIFIED BUYER

      A:

      You could look into rebuilding the existing leaking port or see if manablock custom builds manifolds. Short of sheer luck, i doubt the very same configuration exists from any manufacturer than yours.
      Please consider the environment before printing this email

      Answered on 8/30/2012 by Anonymous
    • VERIFIED BUYER

      A:

      Honestly - no idea. The setup you describe is opposite from how Manablocks
      are made currently. You may want to contact the company directly to see if
      they can reverse the hot and cold port banks for you. Good luck.

      Answered on 8/30/2012 by Anonymous
    • CUSTOMER CARE

      A:

      Current MANABLOCs all place the hot ports along the left side. One possible solution would be to use the red ports for cold and the blue ports for hot. You can do this as long as you don't plan to feed cold water to your water heater through the MANABLOC.

      Answered on 9/11/2012 by PexSupply Staff from NY
  • 1/2", 14 Port Compression MANABLOC (6 hot, 8 cold)

    Q:

    What is the proper procedure for start-up of the manifold. I am converting an existing house over and want to start up one fixture at a time. Can initial water pressure be applied without having any of the port valves open?
    Asked on 8/25/2012 by Dean

    6 answers

    • VERIFIED BUYER

      A:

      Upon completion of my connections, that is, supply, water heater and runs, I
      turned on the main then worked the air out of the system one run at a time.
      Accordingly, all ports were closed initially. This should not be a problem
      with the Manabloc system. It's great!!

      Answered on 8/25/2012 by Anonymous
    • VERIFIED BUYER

      A:

       the installation manual state  open all value that you are using before pressurizing or damage  may occur  if you must open one under pressure  open slowly a little until line is fully pressured then open fully

      Answered on 8/25/2012 by Anonymous
    • VERIFIED BUYER

      A:

      yes, air will be forced out as you open ports individually.

      Answered on 8/25/2012 by Anonymous
    • VERIFIED BUYER

      A:

      The manifold is just a series of valves. It doesn't know the difference if
      your project is complete or not. Be sure you have the caps to close off
      the manifold through piping at the top or bottom. Where you put the caps
      depends on if you feed it from the top or bottom. You will love this
      thing. I have two. One for a basement apartment and one for the
      upstairs. This way i can have two water heaters which are on separate
      electrical feeds and meters.

      Answered on 8/26/2012 by Anonymous
    • VERIFIED BUYER

      A:

      Yes you should be fine, one at a time or none.

      Answered on 8/27/2012 by Anonymous
    • VERIFIED BUYER

      A:

      Any or all valves can be closed... assuming that your house water
      pressure is in the normal working range.

      Answered on 9/19/2012 by Anonymous
  • 1/2", 14 Port Compression MANABLOC (6 hot, 8 cold)

    Q:

    Can I connect female hose fittings to my Manabloc to connect dishwasher and icemaker with copper pipe?
    Asked on 6/9/2012 by Plumb Bum from VA

    3 answers

    • VERIFIED BUYER

      A:

      No, you shouldn't. Run your pex lines to the wall behind the dishwasher
      and fridge, then add a fitting to run your copper from there.

      Answered on 6/10/2012 by Anonymous
    • VERIFIED BUYER

      A:

      I wouldn't rely on a hose connector to be leak-free, even if the threads
      match (which they probably do not). If the threads do not match, you risk
      problems of cross-threading the port, making it difficult to ever get a
      good compression fit in the future.
      Ideally, I would come out of the Manabloc with 1/2" Pex, and then use a
      "Sharkbite" or similar coupling to transition to copper without the need
      for solder.
      If I was missing the original compression parts, and couldn't replace them
      easily, rather than trying to connect to the manifold with a hose fitting,
      I would TEE off of some of the correctly connected branches. Pick the
      branch from the lowest-use hot port for the dishwasher (like the lavatory
      for a 1/2-bath), but pretty much any cold branch for the icemaker would be
      okay.
      If you've misplaced some of the hardware that came with the Manabloc, you
      should be able to obtain spares from a Viega supplier.

      Answered on 6/12/2012 by Anonymous
    • CUSTOMER CARE

      A:

      You wouldn't be able to connect hose fittings or copper fittings directly to the MANABLOC, but you could transition from PEX to copper in the line or use PEX dishwasher/ice maker valves.

      Answered on 6/26/2012 by PexSupply Staff from NY
  • 3/8", 30 Port Compression MANABLOC (12 hot, 18 cold)

    Q:

    We moved into a home that was built in 2004, the house set empty for 3 years, a 30 port Manabloc system was installed. We several issues and not sure what to do. 1. One sink (hot & cold) does not work, checked the values, everything is on, ut no water. 2. Have 3 other locations that the hot water pressure is very low. What needs to be done to try and fix these issues?
    Asked on 6/8/2012 by Doug from Murrieta, CA

    1 answer

    • CUSTOMER CARE

      A:

      Assuming that the valves are all open and working properly, the only issue we can think of is that there is some kind of obstruction in those lines, perhaps a kink in the tubing.

      Answered on 6/8/2012 by PexSupply Staff from NY
  • 3/8", 24 Port Compression MANABLOC (9 hot, 15 cold)

    Q:

    i seem to keep blowing a gasket between #7,#8 hot port is there a repair kit or do i need to buy a new manifold this is my 3rd manablok
    Asked on 5/29/2012 by scott from pittsburg nh

    3 answers

    • VERIFIED BUYER

      A:

      As far as I know, there is no repair kit.
      The joint between port 7 and 8 seems to be close to the middle of the
      manifold. If I had to guess at a diagnosis for why this problem recurs, it
      would be that your tubing installation is (in some way) placing a bending
      stress on the manifold, and the most likely place for this to show up is
      by the middle joint opening up on one side.
      One way that this might occur is that all tubing from ports on the right
      side is being forced into a tight cluster 6 to 12 inches from the
      Manabloc. The tubing may be acting as springs to place pressure on the
      manifold.
      Another issue may be that the tubing was not installed with the specified
      allowance for expansion and contraction with temperature. As Pex cools off
      it get's shorter. As it heats up it gets longer. If there is no slack in
      the lines, they could potentially push and pull on the manifold.
      I would check that the next manifold is mounted securely, and then try to
      get a little bit of slack in the tubing near each of the ports. Try to
      isolate the manifold from thermal expansion and contraction of the Pex
      lines by creative placement of bends in the tubing or clamping hardware.
      You may have to add tubing to each branch to get the proper amount of slack
      in the system.

      Answered on 6/12/2012 by Anonymous
    • CUSTOMER CARE

      A:

      There is no way to repair a MANABLOC in between sections. The MANABLOC must be failing due to excessive temperature or pressure.

      Answered on 6/19/2012 by PexSupply Staff from NY
    • VERIFIED BUYER

      A:

      Seems like the issue might be too much pressure in your system. I would be
      sure to check that before replacing the manabloc. Be sure your pressure is
      below 70lbs and also you should install an expansion tank near your hot
      water tank on the cold side to take some of the shockwave out of the
      system. when you have the pressure issue handled then fix the manabloc.

      Answered on 5/29/2012 by Anonymous
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