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I am on my 4th heater valve rebuild by Old Air. Looked at my history on rebuilds and I’m getting 6-10 months out of a valve and it starts to leak at the diaphragm. VERY unhappy.
I am using Evans waterless antifreeze which has worked out well and has good characteristics for alum…
In talking with the Evans tech on the problem he said they may be using old timey rubber on the diaphragms. He said Evans is not compatible with genuine rubber.
Old Air says yes they are using rubber diaphragms that they have made for them.
Anyone using Evans?
And if so has anyone experienced this?
I saw an old post of yours that you adapted a valve from Napa to replace your orig.
That’s probably my best option.
Do you have a picture of the install and possible a part number?
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