pressure washer low water pressure image
Lubyloo
I want to get a pressure washer to use in cleaning the front porch, driveway, and siding of my home, but my house has low water pressure. Would a pressure washer still work in this situation? I guess I don't know how a pressure washer works - I assume it's hooked up to a hose on the house??? Thanks.
Answer
It really depends on what you call low. If its too low the pressure washer will 'hunt' or surge up and down on the outlet pressure and will eventually damage the washer unit. Your guess is correct it is hooked up with a hose to the house and a very long hose of too small a size will have the same effect as low water pressure. Check with manufacturers instructions or seek advise from the supplier but I would hazard a guess you need about 18/22 psi minimum.
It really depends on what you call low. If its too low the pressure washer will 'hunt' or surge up and down on the outlet pressure and will eventually damage the washer unit. Your guess is correct it is hooked up with a hose to the house and a very long hose of too small a size will have the same effect as low water pressure. Check with manufacturers instructions or seek advise from the supplier but I would hazard a guess you need about 18/22 psi minimum.
Low Water Pressure in Bathroom Shower?
Dingo444
I actually have two questions. First, do plumbers generally use 1/2 or 3/4 inch copper pipe for residential water lines, and could the smaller of the two affect water pressure? Secondly, what are some scenarios that could cause lower water pressure in a shower or bathroom, particularly the cold water from a single handle shower? Thanks in advance for any help on this!
Answer
This is due to almost all shower heads sold now are "water savers" You might remove the head, look for a washer where it screws to the 1/2 inch supply pipe. It will have a very small hole that restricts the flow of water. I have just drilled or carved this hole to about twice its size and have water that will knock the dirt off your body!
In a normal 3 or 4 bedroom house with 2 full baths, yes 3/4 pipe coming into the water heater, 3/4 going out, normally to each bath room then reducing to 1/2 inch to each fixture. The kitchen and laundry will have plenty water pressure and volume from 1/2 inch piping. Providing that the incoming pressure is adequate.
**JD
This is due to almost all shower heads sold now are "water savers" You might remove the head, look for a washer where it screws to the 1/2 inch supply pipe. It will have a very small hole that restricts the flow of water. I have just drilled or carved this hole to about twice its size and have water that will knock the dirt off your body!
In a normal 3 or 4 bedroom house with 2 full baths, yes 3/4 pipe coming into the water heater, 3/4 going out, normally to each bath room then reducing to 1/2 inch to each fixture. The kitchen and laundry will have plenty water pressure and volume from 1/2 inch piping. Providing that the incoming pressure is adequate.
**JD
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