Joe Mayer
New Member
Great minds,
I have lived in my 119 year old house for 20 years. During all of this time, I have experienced good water pressure (hot and cold) downstairs. Upstairs, although I have acceptable hot water pressure, I have always had very poor cold water pressure. For example, I take a shower with the hot tap 1/4 open and the cold tap wide open. Still, it’s an effort just to wash the shampoo out of my hair. (And yes, I have removed the water restrictor from shower head.)
It’s just my brother and me. We do not have a lot of water usage. In fact, we try not to shower At the same time or if the washer, dishwasher, or garden hose is running. I am on city water. I just measured the pressure to be 45 psi at sillcock. It’s not a big house. All of the plumbing fixtures are within 20 feet of the main shutoff valve. I suspect that the water loses most of its pressure in the rise to upstairs. I assume my hot water pressure is better because the hot water tank keeps that water under pressure and acts as reserve.
In recent years, as part of other projects, I have replaced all of my supply lines (starting with and including the shutoff valve in the basement.). All were 40 to 60 year old 1/2 inch copper. I ran 3/4 inch pex from the household shut off valve to a cold water manifold with 1/2 inch pex to each room, except as discussed below. For the hot water, I ran 3/4 inch pex from the shutoff to the water heater and continued with 3/4 back to the manifold. I also ran 3/4 pex directly from the water heater about 10 feet to a 3/4 cpvc line to a new upstairs bathroom and laundry room. (The increase from the old 1/2 copper to 3/4 pex gave a little improvement.) The other upstairs bathroom is fed by 1/2 pex from the manifolds (hot and cold) but the last 10 feet are old 1/2 copper. (The switch from 1/2 copper to 1/2 pex made matters a little worse) All in all, the switch from 1/2 copper to 1/2 pex caused a moderate decrease in pressure throughout the house.
What is the easiest way to increase my cold water pressure upstairs? I could increase my pipe sizes, but the last 10 feet under each bathroom would require some effort because they are only accessible through ceilings. Should I install a pump? Or should I add some sort of holding tank (as the water heater seems to help with the hot water pressure)? Thank you for any suggestions!
I have lived in my 119 year old house for 20 years. During all of this time, I have experienced good water pressure (hot and cold) downstairs. Upstairs, although I have acceptable hot water pressure, I have always had very poor cold water pressure. For example, I take a shower with the hot tap 1/4 open and the cold tap wide open. Still, it’s an effort just to wash the shampoo out of my hair. (And yes, I have removed the water restrictor from shower head.)
It’s just my brother and me. We do not have a lot of water usage. In fact, we try not to shower At the same time or if the washer, dishwasher, or garden hose is running. I am on city water. I just measured the pressure to be 45 psi at sillcock. It’s not a big house. All of the plumbing fixtures are within 20 feet of the main shutoff valve. I suspect that the water loses most of its pressure in the rise to upstairs. I assume my hot water pressure is better because the hot water tank keeps that water under pressure and acts as reserve.
In recent years, as part of other projects, I have replaced all of my supply lines (starting with and including the shutoff valve in the basement.). All were 40 to 60 year old 1/2 inch copper. I ran 3/4 inch pex from the household shut off valve to a cold water manifold with 1/2 inch pex to each room, except as discussed below. For the hot water, I ran 3/4 inch pex from the shutoff to the water heater and continued with 3/4 back to the manifold. I also ran 3/4 pex directly from the water heater about 10 feet to a 3/4 cpvc line to a new upstairs bathroom and laundry room. (The increase from the old 1/2 copper to 3/4 pex gave a little improvement.) The other upstairs bathroom is fed by 1/2 pex from the manifolds (hot and cold) but the last 10 feet are old 1/2 copper. (The switch from 1/2 copper to 1/2 pex made matters a little worse) All in all, the switch from 1/2 copper to 1/2 pex caused a moderate decrease in pressure throughout the house.
What is the easiest way to increase my cold water pressure upstairs? I could increase my pipe sizes, but the last 10 feet under each bathroom would require some effort because they are only accessible through ceilings. Should I install a pump? Or should I add some sort of holding tank (as the water heater seems to help with the hot water pressure)? Thank you for any suggestions!