RO/DI system issue

drich79 · 04/18/2012, 12:04 PM

Last month I installed an RO/DI system I purchased from Purewaterclub. After setting it up it ran fine, than I connected it to a float that's in my 5gallon storage tote for my ATO system. The problem I have is that when it starts to refill the tote I get a LOUD vibration noise from the Auto Shut off valve. It doesn't seem to be constantly vibrating.. only when it's done refilling and it only lasts about a couple secs.. Could this be a pressure issue?
Also I came home to find that the water was draining from the drain line for most of the day (I can only assume as it was running constantly when I came home). I read online about the Auto Shut offs and/or the check valve (flow restrictor) failing.. Could this be it..?

MarkGP · 04/18/2012, 07:09 PM

Not sure of that brand but my auto shut off makes that same noise for a few seconds as it shuts the water off. There shouldn't be any water coming out of the drain line after it's shut off. Possibly a defective ASOV.

tkeracer619 · 04/18/2012, 07:45 PM

Possible bad ASOV. Give them a call, it needs to be replaced.

It could also be a bad check valve. You should check that first.

drich79 · 04/19/2012, 06:23 PM

Thanks for the responses.. The ASOV and Flow restrictor are both cheap so I'm going to replace both and see how it goes.

mgargiullo · 04/19/2012, 09:28 PM

Does it sound like a water hammer? If so, they sell (or you can make) an arrestor.

04/18/2012, 12:04 PM	#1
drich79 Registered Member Join Date: Feb 2012 Posts: 6	RO/DI system issue Last month I installed an RO/DI system I purchased from Purewaterclub. After setting it up it ran fine, than I connected it to a float that's in my 5gallon storage tote for my ATO system. The problem I have is that when it starts to refill the tote I get a LOUD vibration noise from the Auto Shut off valve. It doesn't seem to be constantly vibrating.. only when it's done refilling and it only lasts about a couple secs.. Could this be a pressure issue? Also I came home to find that the water was draining from the drain line for most of the day (I can only assume as it was running constantly when I came home). I read online about the Auto Shut offs and/or the check valve (flow restrictor) failing.. Could this be it..?

04/18/2012, 07:45 PM	#3
tkeracer619 Registered Member Join Date: Jan 2006 Location: Westminster, CO Posts: 17,289	Possible bad ASOV. Give them a call, it needs to be replaced. It could also be a bad check valve. You should check that first. __________________ Hobby Experience: 9200ish gallons, 26 skimmers, and a handful of Kent Scrapers. Current Tank: Vortech Powered 600G SPS Tank w/ 100gal frag tank & 100g Sump. RK2-RK10 Skimmer. ReefAngel. Radium 20k.

04/19/2012, 09:28 PM	#5
mgargiullo Registered Member Join Date: May 2008 Location: Hightstown. NJ Posts: 229	Does it sound like a water hammer? If so, they sell (or you can make) an arrestor. __________________ People think I'm crazy when I tell them I'm saving my money to buy Rocks and Sand. Current Tank Info: 112g mixed reef, 40g Breeder, 16g Nuvo and 8g Nuvo,

04/18/2012, 07:09 PM	#2
MarkGP Why do I do this? Join Date: Dec 2005 Location: Bristol, RI Posts: 1,015	Not sure of that brand but my auto shut off makes that same noise for a few seconds as it shuts the water off. There shouldn't be any water coming out of the drain line after it's shut off. Possibly a defective ASOV.

04/19/2012, 06:23 PM	#4
drich79 Registered Member Join Date: Feb 2012 Posts: 6	Thanks for the responses.. The ASOV and Flow restrictor are both cheap so I'm going to replace both and see how it goes.