Plumbers advice?

runamuk · Nov 25, 2022

I am trying to winterize a house and need to blow out the waterlines.
Can I just use the air valve on the top of my pressure tank to blow out the water lines throughout the house?

Bluehair · Nov 25, 2022

Good question. I have a nipple in the line after the tank in mine, but that doesn’t address the water in the tank or pump.

I can never seem to get all the water out of mine with air.

Lettuce know.

DonVathome · Nov 25, 2022

I do not think so, that is to adjust the pressure in the tank - there is a bladder. You typically never have to adjust the pressure in the tank. I am fairly sure you should definitely not use that valve to blow out the water.

Wiszard · Nov 25, 2022

Why do you need a pressured tank for your water needs? Is this on a well system?

runamuk · Nov 25, 2022

DonVathome said:
I do not think so, that is to adjust the pressure in the tank - there is a bladder. You typically never have to adjust the pressure in the tank. I am fairly sure you should definitely not use that valve to blow out the water.

Wiszard said:
Why do you need a pressured tank for your water needs? Is this on a well system?

Wizard- yup it's a well system.

Bluehair said:
Good question. I have a nipple in the line after the tank in mine, but that doesn’t address the water in the tank or pump.

I can never seem to get all the water out of mine with air.

Lettuce know.

I just disconnected the pressure tank and let what little was left in it drain out into some towels.
The pump is a submergible and the well is about 350'so not worried about it.
I'm a little worried about the waterline between the pressure tank and well though, trying to find out if I can blow that that back out towards the well.

Thanks Don, that's kind about the same conclusion I came to, Iwas just hoping it would be an easy way to clear the waterlines.
Ended up just separating the line and built a reducer to hook up my air compressor to I'm fairly confident I got them completely blown out.