I did not see answer here that covered my problem or I just did read that far. Anyways I have a camp up in north new hampshire and we shut the water pump off each time we leave the camp. Well we have not been up there in about four month's this time we went up and there was no water flow at all after I turned the water pump on .( I should tell you it is a house really we call it a camp so it has code plumbing) after ten minite's the water comes on but not much pressure at all not enough to take a shower and this problem applys to hot water to any ideas on how to fix it?