08-14-2013, 06:13 AM
First: greater pressure on hot...as in a little or a lot? if a lot, most likely not pump/pressure tank, as they feed water to both....if a little, check the pump/pressure tanks...
Do your pressure tanks have gauges? If so, they should be ~45psi (The only time this would not be a good indicator is if the line in the gauge was blocked...our old house had REALLY hard water & when replacing a blown tank bladder, the fool gauge still read 48psi... darn pipe was solid calcium!) ADDED, noticed you answered this...still good to hoave...so you know the pressure at the tanks...
If the pressure tank do not have gauges, that is a good thing to note for future safety...
next do you have an over-pressure valves at/near the pressure tanks...that may have blown....
If everything looks good at the pump/pressure tank....next start checking all of your cold lines for any leaks.... copper lines are more prone to pinhole corrosion here, but plastic lines can split....and both can have joint failures... this is where the fun begins...
Added... if the cold water pressure issue is just in one area of the house (you only mentioned kitchen) you may also want to check the cold lines for a shut off valve to the area... that may be the problem
Oh, & the sink faucet may be the problem with the initial low pressure at the sink complaint... it may be the faucet itself, but SIL had a cold water shut off gate valve that had decomposed & crapped up her kitchen sink cold water....
Do your pressure tanks have gauges? If so, they should be ~45psi (The only time this would not be a good indicator is if the line in the gauge was blocked...our old house had REALLY hard water & when replacing a blown tank bladder, the fool gauge still read 48psi... darn pipe was solid calcium!) ADDED, noticed you answered this...still good to hoave...so you know the pressure at the tanks...
If the pressure tank do not have gauges, that is a good thing to note for future safety...
next do you have an over-pressure valves at/near the pressure tanks...that may have blown....
If everything looks good at the pump/pressure tank....next start checking all of your cold lines for any leaks.... copper lines are more prone to pinhole corrosion here, but plastic lines can split....and both can have joint failures... this is where the fun begins...
Added... if the cold water pressure issue is just in one area of the house (you only mentioned kitchen) you may also want to check the cold lines for a shut off valve to the area... that may be the problem
Oh, & the sink faucet may be the problem with the initial low pressure at the sink complaint... it may be the faucet itself, but SIL had a cold water shut off gate valve that had decomposed & crapped up her kitchen sink cold water....