[Don Kee]

Open the gate valve (as if you’re flushing) and then slowly close it to build up the required pressure.

[NWH]

Hi DonKee it’s pre set so it just needs a small turn for waste and then back a clockwise turn for making water,like I said it was working fine for the first 1000ltrs not a single leak.

[Shrek]

Where is it leaking from ? Is it the end cap on the membrane or is it leaking from the pressure gauge?

[NWH]

It’s leaking from the top of the membrane fizzing out the top like it’s blocked some how nothing can be getting past the RO and even attempt to get in to the resin vessel.

[NWH]

The pressure gauge isn’t even registering any pressure.

[Shrek]

It’s leaking from the top of the membrane fizzing out the top like it’s blocked some how nothing can be getting past the RO and even attempt to get in to the resin vessel.

Does anything need tightening?

[NWH]

I don’t think anything needs tightening maybe the bolts that hold the membrane either end but like I say it was working fine before.

[Shrek]

If you’ve already filled your tank up once , I reckon everything is how it should be (membrane in the right way round etc) , maybe something has come loose after the 1st use

[NWH]

What do you mean like the bolts top and bottom of the membrane the thing is water is not passing through it even when on waste only,it fills leaks and no water goes to drain.

[Shrek]

Hmm it’s a difficult one when it comes to membranes, it’s something we don’t really have to deal with for a few years at a time.
I had a quick google and someone had the same issue with the pressure gauge and it was the gauge that needed tightening but wasn’t having the issue of leaking water

https://www.reef2reef.com/threads/pressure-gauge-not-working.750082/

[Shrek]

Apparently a lot of end caps are a crap fit so companies use shed loads of ptfe tape - maybe some has blocked the inlet? It’s a pita but it’s a process of elimination . I would take the end cap off and see what’s going on inside and see if it is actually blocked

[NWH]

Thanks for that I’ll try tightening it but surely it can’t be that it’s only been used once,why am I getting no water out of the RO though it’s just filling full of pressure waters not going anywhere.

[NWH]

When I unplugged the hose from RO into vessel I got no water at all.

[Shrek]

Does this red switch make a difference to the water draining out?

[NWH]

That is pre set for the pump it’s the perfect setting for optimum pressure I altered it by mistake and it ran terribly,I’ve just drained the RO from the waste pipe till it was empty and tried filling again.
This time the pressure gauge went up to 20 before again it started leaking and fizzing from the RO,could there be an air lock from RO to resin vessel causing back pressure perhaps.

[NWH]

The RO was drained I could hear it filling when the booster pump was turned on.

[KS Cleaning]

When you said you’ve already used it for 1000 litres did you check that the membrane was reducing the tds as would be expected? Did you make sure all packaging was removed from membrane? Sounds like something is blocking the membrane.
Don’t use the booster pump whilst investigating the problem,  just use tap pressure.

[NWH]

Thanks KS it was all removed they test everything before they send it out you could see they’d put water through it first before shipping like a lot of suppliers used to with pumps.

[NWH]

I ran it again I had water coming out the waste pipe to drain and water coming out of RO into vessel,as this was happening the RO was Pi***** out water from the inlet side or the top as it’s mounted.

[Shrek]

I think you should open it up at the top end cap and see what’s going on . You’ll need to learn how to do it eventually when your membrane needs changing