RO/DI question

[kel2682]

I purchased a filter and instruction book says if pressure is below 40 psi will cause under production and overwaste, also says it will shorten membrane llife. Now gauge reads 20 but pressure is strong out of faucet but it is making alot of waste... is this really an issue????
Some thoughts please
And will a boosterr pump really be worth it ?

[sps1-2-b]

If you could try to ask AZDesertRat. He is the ambassador of ro/di. :)

[Buckeye Hydro]

Your system won't work well (or at all) with 20 psi. If you think you have "good pressure" but your gauge only reads 20 psi - there might be a problem with your connection to your plumbing. How did you tie your system into your plumbing?

Re a booster pump - once you make sure you need one - yes - they make a world of difference. They can make a huge difference in the amount of purified water your system produces and they help the membrane work more efficiently (increase the rejection rate).

Russ

[Randy Holmes-Farley]

Now gauge reads 20 but pressure is strong out of faucet

Is it reading 20 psi after the prefilters, but was previously higher? Are they clogged? That is why the gauge is there, to know when to replace the sediment filter. :)

[kel2682]

If I close the waste valve half way the gauge goes up to 45 and the waste slows down is that an okay adjustment or no????
I just used the faucet adapter and I just thought I had decent pressure The water seems to be coming out strong its seems if I double it at 20 psi it would be super pressure any more thought I do appreciate it all
THNKS

[Randy Holmes-Farley]

Waste valve? I'm not sure what that even is. Maybe you have the flow restrictor installed incorrectly (or not at all).

[mudskipper1]

I just bought a BFS unit and it reads 30-35 PSI, will this be okay, as I get a 3-1 waste-product, and 0 tds. sorry to hijack

[kel2682]

On the waste line there is a valve It does say "flow 400 pat" or something like that

[kel2682]

but where should the flow restrictor be installed?

[kel2682]

anyone

[Randy Holmes-Farley]

I can't say where or how it should be installed in your particular unit. Maybe others with that unit can reply, or you can ask the manufacturer.

[kel2682]

Maybe a pic will help
http://s292.photobucket.com/albums/mm37/Kel2682/?albumview=grid&fullsize=DSC00694.jpg

[kel2682]

is that the flow restrictor, and that would work to get the psi up and that would be okay right???????

[kel2682]

?

[AZDesertRat]

That valve should be in the closed position for normal operation. You should see about 4:1 waste to good water when its closed. In the open position you are flushing the surface of the membrane so the pressure will go down.

[kel2682]

closed all the way really ??? thanks

[AZDesertRat]

Yes, closed all the way. What it does when it is open is bypass the flow restrictor completely. In the closed position it goes through the restrictor. Personally I think flush valves are a farce and don't do anything at all. I have never owned one and my membranes last for years even with a TDS over 800. They are a sales gimmic is all and there are no proven reports they accomplish squat.

[kel2682]

TY