What is a thermal expansion tank, and why do you need one?
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- Опубликовано: 18 фев 2023
- Have you ever wondered what your themeral expansion tank is for? In this video JJ with Merit Plumbing in Sarasota Florida explains what your thermal expansion tank is and why it is needed to protect your water heater and plumbing system.
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Always wondered and no one seems to know. Great video
Glad it was helpful!
How do u fill it with air
First you need to turn off the water being supplied to the tank. Then you need to open a faucet on the hot side to relieve the pressure. On top of the tank there is a valve just like you would use on a tire. It’s also a good idea to actually unscrew the tank and remove it to check for corrosion on the inlet. Especially if it was screwed into copper. When it is screwed into a copper fitting it will build up with a lot of corrosion.