Leaderboard

Chemical damage is the #1 cause of gasket failure. Pressure gaskets are the first to show signs, with the heater gaskets being the quickest of all, likely from the heat. You do have many other gaskets, and they are all damaged to some degree, but those not under pressure (jet flange gaskets) can last much longer.

Yes, that cap is bad.

Are you referring to the logo lights? I think It's possible that a wire was disconnected when the access panel was removed and never re-connected I know this is an issue on newer hotspring hot tubs where a novice user will remove the front access panel and accidentally rip off the wires connecting the logo display lights to the control board. Or sometimes people remember to disconnect, but never re-connect the wires when reinstalling the access panel. That's where I'd start looking before assuming you need a replacement board - especially these days when you'll have trouble finding a replacement control board for that old spa

It is not cracked. That’s a surface scratch from removing tape when we tried to stop the leak over the winter. there are no cracks in the pipes or the fittings. The water sprays out the top of the union when pressure is applied, at the threaded joint. we picked up oil filter wrench and tightened with that and there is no movement now. Just waiting for the weather to cooperate so we can fill the tub again and test.

Thanks for the response RDspaguy. -Rob