Thread: Single handle faucet question

What causes some single handle type faucets to shut almost all the way off when operating?

Example: Pull the faucet all the way open - good water flow. Release the handle and the handle moves toward the closed position and water flow is reduced accordingly.

Thanks and have a great day.

Jonathan

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Originally Posted by Jonathan Cartwright

What causes some single handle type faucets to shut almost all the way off when operating?

Example: Pull the faucet all the way open - good water flow. Release the handle and the handle moves toward the closed position and water flow is reduced accordingly.

JC,

Not entirely sure. I usually attribute that to wear and suggest replacement of the cartridge/valve stem or any needed repairs by a licensed plumbing contractor.

I've seen this a few times before.

Replace the cartridge or O-rings.
O-rings cost less but the cartridge is simpler.

Cheap, aftermarket cartridges can cause that behavior.

Originally Posted by Rick Cantrell

Replace the cartridge or O-rings.
O-rings cost less but the cartridge is simpler.

Unless it's a moen. If it's a moen, take the cartridge to the plumbing supply house (not the box stores) and they will exchange it at no charge.

Sometimes the lever handle set screw or fastening nut hasn't been tightened sufficiently. As previously mentioned, sometimes it is cartridge related, occasionally a flow restriction before hand such as supply valve(s) not fully opened, kink, etc., sometimes not enough friction such as the moen pull-out/up o-ring issues and plastic cartridges. Sometimes it is the ball/socket or gear interface between underside of lever handle broken or striped plastic, nylon, or pot metal.

Thank you for the information. Excellent as always.