Manifold in pvc to murlock

Feltman · Jan 12, 2016

So I'm looking to build a pvc manifold for a new tank and I have a brs dual reactor and the brs biopellet reactor as well as a calcium reactor they all use the ro style tubing for feed lines I was wondering how people attached these to a pvc manifold. In the past I've teed the pvc and attached the screw in murlock fittings into an end cap by drilling and tapping it. However I feel like it never looks great and leaks often so I was wondering what other alternatives people have used?

Feltman · Jan 12, 2016

Example of previous project as you can tell from the salt creep wasn't very successful so it stays above the sump so I was wondering what other people are doing

kschweer · Jan 12, 2016

What I usually do is use a ball valve (coupling works if you don't want the valve) and a reducer bushing that is threaded. So if you're using 1" pipe and need 1/2" threads a 1" slip x 1/2" threaded reducer.

klesel · Jan 12, 2016

You can get reducers of really any size to fit any thing comon sizes at most big box stores special stuff u can get online . iv gotten a slip by thread reducer of 1" x1/4 at Lowe's before in the schedule 80 which is the gray pvc in plumbing area .but you can try that

dbl · Jan 12, 2016

As others said, it's just a matter of finding the correct reducers. Below is my manifold going to my BRS reactor. I used a threaded nipple reducer out of the gate, then another reducer to the pipe hose. A trip to orange or blue store should do it. Grab several and return the extras.

AZDesertRat · Jan 12, 2016

You can find PVC reducers down to 1/4" at any hardware store. John Guest or Murlock fittings for RO systems are commonly 1/4" so fit perfectly. You might read my Installing Bulkhead Tips sticky post for the correct thread lubricant for threaded PVC fittings and how to prepare them correctly so they do not leak.

Feltman · Jan 12, 2016

AZDesertRat said:
You can find PVC reducers down to 1/4" at any hardware store. John Guest or Murlock fittings for RO systems are commonly 1/4" so fit perfectly. You might read my Installing Bulkhead Tips sticky post for the correct thread lubricant for threaded PVC fittings and how to prepare them correctly so they do not leak.

Always willing to do more research but not seeing the sticky ur talking about. Do you have a link?

Jlobes · Jan 12, 2016

https://www.reef2reef.com/threads/installing-bulkhead-tips.34973/
here ya go.
as the others have said, you can find reducers down to 1/4 at most hardware stores. heck I can even find em here in my remote area, so shouldnt be too hard in seattle.

Rybren · Jan 13, 2016

Unless you happen to live in Canada, then you're SOL. PVC isn't used much here and it can be a challenge to find anything other than standard elbows, Ts, and pipe.