Mike from Brier
Member
Hey all you plumbing pro's:
I have an approximately 4 year old 2 stage undersink OmniFilter with its own faucet on the sink ledge. Ever since I installed it, per manufacturers instructions, it has dripped from the filter faucet about 5 minutes after someone takes a hot shower or does a sink full of dishes using the hot water. I get it to stop dripping only after opening a cold water faucet (anywhere in the house). Most of the time it will start back up in a couple minutes, so I must repeat this process two or three more times before it stops.
I assume this is due to a pressure rise in the supply side of the filter due to some kind of thermal expansion, but what I don't understand is why this faucet valve can't handle the rise. It's the second valve, and both have done this. Omni replaced the first one under warranty thinking it was defective. Now I'm not so sure.
My ambient water pressure coming into the house is around 40-45 psi as supplied by the water district, and measured at a hose bib outside. All plumbing leading to this sink on the main floor is new copper in an exposed but heated basement. The supply to the sink is 1/2", and the supply from that to the filter is 1/8 or 3/16" plastic tubing, whatever came with the kit.
What's really going on here, and what pressure would do you think this filter faucet should be able to handle? Should I get some kind of gauge to measure the pressure at the kitchen sink faucet when the filter faucet starts dripping? Has anyone ever found it necessary to install some kind of pressure reducer/relief in the supply side of a filter such as this?
I'm really stumped so would appreciate any feedback and ideas.
Thanks!
I have an approximately 4 year old 2 stage undersink OmniFilter with its own faucet on the sink ledge. Ever since I installed it, per manufacturers instructions, it has dripped from the filter faucet about 5 minutes after someone takes a hot shower or does a sink full of dishes using the hot water. I get it to stop dripping only after opening a cold water faucet (anywhere in the house). Most of the time it will start back up in a couple minutes, so I must repeat this process two or three more times before it stops.
I assume this is due to a pressure rise in the supply side of the filter due to some kind of thermal expansion, but what I don't understand is why this faucet valve can't handle the rise. It's the second valve, and both have done this. Omni replaced the first one under warranty thinking it was defective. Now I'm not so sure.
My ambient water pressure coming into the house is around 40-45 psi as supplied by the water district, and measured at a hose bib outside. All plumbing leading to this sink on the main floor is new copper in an exposed but heated basement. The supply to the sink is 1/2", and the supply from that to the filter is 1/8 or 3/16" plastic tubing, whatever came with the kit.
What's really going on here, and what pressure would do you think this filter faucet should be able to handle? Should I get some kind of gauge to measure the pressure at the kitchen sink faucet when the filter faucet starts dripping? Has anyone ever found it necessary to install some kind of pressure reducer/relief in the supply side of a filter such as this?
I'm really stumped so would appreciate any feedback and ideas.
Thanks!
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