Question about Dishwashers

1 Answer

Water backs up from the sink. pump works but no pressure

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert that has over 500 points.


    An expert who has answered 200 questions.

  • Expert
  • 338 Answers

Your drain hose is backed up in the air gap.. there is either a stainless steel colored thing on your sink or its white that normally you never do anything with. you have to take the 2 caps off of it and clear any debris. if you dont have one then you should get a bucket and take the drain hose off of the drain or the garbage disposal. then clean it out with something like a fridge coil brush (you can pick up at any home store for 10 bucks) then hit the drain button and let it drain into the bucket to make sure its pumping before you reconnect it to the drain. let me know if you need further assistance

Posted on Nov 29, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Can I clean the valve to remove sediment?

when this problem presents I consider that the problem is in the weak tap stopper /seat
they can break down ,become enlarged and not move of the tap seat to allow full flow
that is the first check I would be doing

Mar 02, 2015 | Grundfos Pumps Grundfos Comfort System...

2 Answers

How does pressure tanks work

Pressure tanks do just that in a water system. They create pressure for water to flow when the water pump is on the off cycle. A manifold is plumbed into the tank from the main line coming from the well. The main water line continues to the house plumbing from the manifold. So it's line from pump to manifold - to tank, and from manifold to main into house. The manifold also has tappings for the pressure gauge and the pressure switch. The pressure tank creates water pressure. The water does not flow through the tank. Pressure tanks also have to be 'tuned' or adjusted to the low end pressure set by the pressure switch. Actually the tank pressure needs to be set 2psi below the low end pressure. Most residential water systems are set to operate between 20 -40, or 30-50 psi, which is set by the pressure switch, which in turn , turns the water pump on and off. So if a system operates between 20 and 40 psi, the pre-charged pressure of the tank should be 18 psi. Pre-charged means the tank is drained of water with the water pump OFF. The tank pressure is then checked adjusted by way of the air valve on top of the tank ( A tire gauge works). Pressure tank mainfolds are a common plumbing part.

Mar 19, 2014 | Utilitech 20-Gallon Vertical Pressure Tank...

1 Answer

Low water pressure in shower and sinks. Pressure good at water source.

Possible that the pump is not working to the the desired pressure and so might be clogged or faulty.
You can remove and clean the pump before this can be confirmed,There can be accumulation of dirt to the input of the pump which can be reversed flushed.

Jan 15, 2013 | Washing Machines

1 Answer

My little giant is used to pump water from a sink to the outlet lines. I noticed that it had leaked water when my washing machine pumped water into the sink. I was not present when that happened. So I ran...

if there is a restriction in the line the pump is trying for example to pump 25 gal an hour and its restricted to 15 an hour you now have back pressure of 10 pounds the water hast to go some Ware and what you see is the result of a leak i would check the out going line hope this helps you bob

May 02, 2011 | Little Giant 6 Cia, 1/3 Hp, 45 Gpm, 230V...

2 Answers

Ok at the place I am employed they have a 1 Hp submersible pump it pumps about 300 ft into the top of a 120 gal storage tank then the water comes out of the bottom of the tank and goes into our grundfos...

The booster should have been placed after you restrooms with a check valve to prevent back-pressure. then you can adjust both the sub-pump pressure, and the booster pressure accordingly
let me know

Dec 18, 2010 | Grundfos MQ3-45 1 HP Pressure Booster...

1 Answer

My water pump kicks on every 30 min or so even if there is no water used

When a pump goes on and off there is a water leak somewhere.
There should be a gauge. Let the pump build up pressure and watch the gauge.
The pressure will probably be dropping. This means that water is going somewhere. The leak could be anywhere that you use water, sprinklers, sinks, hose lines. If there is a valve above or near the pump, shut that valve and see if the pressure stops dropping. If the pressure stays up and the pump stops cycling on and off, the leak in in the pressure piping somewhere, you must locate it and repair it.
If the pressure continues to drop even with the discharge valve shut, the water must be leaking back into the well. There is a check valve somewhere on your line between the well and the pump. If this check valve is leaking, pressure will drop and the pump will come on to restore it.

If it is possible to shut off the discharge of the pump, shut that valve and watch the pressure gauge to see if it is dropping.

Dec 12, 2010 | RTO Wayne 1/2 Hp Shallow Well Jet Pump

1 Answer

Changed r/o 3 filters and now water produces 2cups

The pressure on an EMPTY tank should be 8-10 psi. Be sure the tank is empty before checking the pressure. A good way to empty the tank is to connect a small air compressor to the air valve on the tank, open the systems faucet, and turn on the compressor. A bicycle pump works too....Just more of a workout:)

Jul 08, 2010 | Culligan Sales #SY-750S Under Sink Water...

1 Answer

Dishwasher drains through the garbage disposal into the sink. Water backs up in the sink, but sink drains well in none dishwasher drainage. (There is a vacuum breaker on top of this sink, but I don't think...

The disposal isn't being used much which is causing the slow drain. Turn on disposal for few seconds and this should take care of the problem. During the pump out the pressure is greater than just running water from faucet.

Jul 05, 2010 | Dishwashers

1 Answer

Motor on reverse osmosis runs constantly

If this is a booster pump, many booster pumps like Shurflo have an adjustment at the top (allen screw) to back off on the pump pressure, turn to left to back off on pressure. If it never shuts off this can be an indication of a bad membrane, capillary tube, flow restrictor or automatic shutoff, causing all the water to run to drain. If you have low quantities of water, but pump always runs, this could part of the problem. Also high TDS (total dissolved solids) will cause the pump to work more. The higher the TDS 500+ppm the harder it is to produce quality water. With high TDS it's almost like taking muddy water, running it through filters and getting drinkable water. So the RO and pump have to work much harder to produce any quantity and quality of water.

May 01, 2010 | Culligan Under Sink Water Filter

Not finding what you are looking for?
Dishwashers Logo

Related Topics:

41 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dishwashers Experts

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers


Level 3 Expert

77932 Answers

Brad Brown

Level 3 Expert

16806 Answers

Are you a Dishwasher Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides