Re: DELTA MODEL 470-WH LOW WATER FLOW AT KITCHEN FAUCET
It takes a year for the decreased water flow to develop; I bought a new faucet a year ago. I took the areator off completely as it was plugged with calcium(I'm assuming). I have a tankless water heater, and it needs high flow for the heat to kick in. So I have a problem, and I will follow guidelines in hopes of solving it. Thanks
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Since you are replacing the Delta Faucet Delta 470-BL-DST Signature Single Handle Pull-Out Kitchen Faucet With Spray faucet, bend the water supply lines out of the way, and then use a standard basin wrench to remove the nut.
To get full pressure you need to pull the wand away from the base. Then remove the wand from the hose becareful not to loose the washer. When the wand is removed look down the wand you will see a plastic part. That plastic part is a flow restrict-er. You need to put a screw in the restrict-er and pull it out. When it is out put wand back on the hose then you will have full water pressure.
If the 470 is typical, there should be two large nylon nuts on the bottom of the faucet tubes that hold the faucet to the sink. First, turn the water off, then open the faucet to drain any pressure. Next, disconnect the feed lines (hot and cold) that connect to the faucet from under the sink (be prepared for some water back flow, so paper towels would be a good idea). After the feed lines are disconnected, you should be able to reach up (usually behind the back of the sink basin) and access the two large nylon nuts (one on the cold and one on the hot). These nuts typically have raised portions so that you can get a grip on them. If you are lucky, you will be able to turn them (lefty loosey, righty tighty) by hand. If not you may have to work for some time with various pliers or other tools getting them to turn. Once you have them off, the faucet will simply lift up from the sink. Installation of another faucet should simply be the reverse procedure.
Debris in the valve is a fairly common cause for stopping water flow in single lever valves. You can first check the aereator and remove any debris that may be there at the faucet itself. Then you can try to remove the ball at the control lever. You have to be careful and make sure that you do not drop any parts. Especially if this is a recent installation, you may find a large piece of something there.