Extreme Decrease in Water Pressure

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    • #277184
      wetthumbs

      Our house (Hampton model) was built by Lexington Builders (in Illinois) in the late 1980’s. We have 2 1/2 bathrooms (Master with sink/toilet/shower, Main with sink/toilet/tub with shower and the Half with sink/toilet . When we moved in about 10 yrs ago, we were very impressed with the water pressure. We have noticed over the years that the water pressure in the Main bath (toilet & tub ONLY) has significantly decreased. When the toilet is flushed, a big bubble of air pops up in the bowl and then bowl drains. Sometimes it takes 3 flushes for something that should only take 1 or 2 flushes. The STANDARD size bath tub takes more than 30 minutes to fill! The water flows real SLOW out of the shower head and tub faucet. All of this happens when NO ONE else is using the water. If someone else is using the water, the tub faucet SQUEALS and hardly any water flows out. However, the sink in the Main bath has great water pressure. No other area inside or outside of our house has a problem with water pressure. We have replaced the shower head on more than one occassion which did not improve the pressure at all. We have not changed anything regarding plumbing since we have lived here. Any suggestions? THANK YOU!

    • #295651
      howy plmb
      Participant

      are you on city water or do you have a well sounds like maybe a pump problem if you have a pump you should have a pressure gauge and switch need more info

    • #295652
      howy plmb
      Participant

      sorry did not read all of your posting what kind of tub faucet do you have maybe obstruction in faucet or pressure balancing cartridge not working

    • #295653
      Helen
      Participant

      No, we are not on a well. Lake Zurich water and sewer. We do not have a water softner either.

    • #295654
      Helen
      Participant

      The faucet in the tub is Chateau by Moen.

    • #295655
      turdchaser
      Participant

      You have two problems. For tub and shower you need to replace the cartridge in the valve and flush the lines before putting the new one in. The toilet is a seperate problem supply water pressure does not effect the flush of a toilet it only effects how long it would take for the tank to fill with water. The flush is effected by three things, the amount of water in the tank, how quickly the water gets from the tank to the bowl and if there is any obstruction in the discharge. The reason pressure does not matter is that when you flush the toilet the water in the tank is transferring to the bowl the water in the supply pipe is filling the tank back up. I reccommend taking a five gallon bucket of water and dumping it down the bowl if it goes fast the discharge is fine and the problem is the water transfer from the tank to the bowl. For water transfer problem make sure the water level is up to 1 inch below the fill tube in the tank, make sure water is filling the bowl when it is filling the tank thru the fill tube and finally take a small Allen wrench and probe in all the holes under the rim to remove calcium and mineral buildup. If you have a professional do this have them try what I mentioned before simply reccommending to replace the toilet. I hope this has helped and let us know how it turns out.

    • #295656
      Retired plbg1
      Participant

      Do you have seperate valves in main lines to bathroom. If you have check them out and make sure they are open and if you have them take them loose and see if the washers are not swelled up, you also might have some lime buildup in pipe. If you have seperate stops under lav. take supply line loose and get a bucket and turn wter on and see what kind of press. you have if you have a lot then you have problem with faucet, if not then problem is the valve are in the line behind valve, you will have to do that till you get to source.



      Art retired plbg

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