Hot water lines

[1buda]

I know that antifreeze gets fed to the cold water lines via the pump. How does the hot water lines gets antifreeze?

[1buda]

Old-Biscuit wrote:

1buda wrote:
I double checked HW Bypass it is shut off. I've gone through two gallons of antifreeze. Would I need more?

By pass shut off??????

Bypass needs to be open in order to bypass WH
Cold inlet to WH needs to be shutoff (closed)

Are you getting any flow out of hot side of any faucet?
Should get it out of cold and hot side at same time...if only from cold and none from hot side might want to stop----go remove WH drain plug and see if anti-freeze is in WH

Some WHs have three valve systems......cold inlet, hot outlet & bypass
Some have 2 valve systems...cold inlet & bypass (check valve in hot outlet)
Some have 1 valve...cold inlet/bypass (3 way valve) and check valve in hot outlet.

Which do you have?

Newbie me, I had both valves shut off. I'll try again tomorrow.
I have a two valve system.

Thanks!!

[Old-Biscuit]

1buda wrote:
I double checked HW Bypass it is shut off. I've gone through two gallons of antifreeze. Would I need more?

By pass shut off??????

Bypass needs to be open in order to bypass WH
Cold inlet to WH needs to be shutoff (closed)

Are you getting any flow out of hot side of any faucet?
Should get it out of cold and hot side at same time...if only from cold and none from hot side might want to stop----go remove WH drain plug and see if anti-freeze is in WH

Some WHs have three valve systems......cold inlet, hot outlet & bypass
Some have 2 valve systems...cold inlet & bypass (check valve in hot outlet)
Some have 1 valve...cold inlet/bypass (3 way valve) and check valve in hot outlet.

Which do you have?

[1buda]

I double checked HW Bypass it is shut off. I've gone through two gallons of antifreeze. Would I need more?

[mdcamping]

Old-Biscuit wrote:
Via Water heater bypass line (connects cold inlet line to water heater with hot outlet line from water heater---if you have a bypass)

Otherwise....have to fill water heater with 6-10 gallons of anit-freeze (depending on size of WH) before it will flow to hot water system. And then you have all that anti-freeze in your WH...waste and don't fire off WH with it in there.

Best to bypass WH. Install a bypass if you don't have one.

X2

[PawPaw_n_Gram]

The same pump feeds pressure/ water into the hot water lines - the water just goes through the hot water heater between the pump and the faucet.

You should have a set of three valves next to the hot water heater to close off the heater input water, output water, and open up a bypass.

You never want to run antifreeze through the hot water heater. Find and turn the valves before you winterize.

You should also drain the hot water heater. Winterizing and later summerizing is a great time to replace the water heater anode and to flush out the hot water heater inside with a wand or small sprayer.

[K_Charles]

The bypass valve.

[Old-Biscuit]

Via Water heater bypass line (connects cold inlet line to water heater with hot outlet line from water heater---if you have a bypass)

Otherwise....have to fill water heater with 6-10 gallons of anit-freeze (depending on size of WH) before it will flow to hot water system. And then you have all that anti-freeze in your WH...waste and don't fire off WH with it in there.

Best to bypass WH. Install a bypass if you don't have one.