contact634 Posted October 31, 2020 Report Share Posted October 31, 2020 my 2001 sundance altamar heater is leaking it is leaking at the seam where the two halfs are screwed together in between is a gasket (I saw this on youtube) I tightened the 12 or so screws and the leak stopped for a few days but now its back the heater is expensive so I was wondering if i took it apart and used silicone on the gasket and reassembled if this would work and last? if a silicone would work which one? the heater works fine just leaks Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted October 31, 2020 Report Share Posted October 31, 2020 There should be no way for it to leak there. If there is a leak there is a problem that needs to be addressed. Quote Link to comment Share on other sites More sharing options...
contact634 Posted November 1, 2020 Author Report Share Posted November 1, 2020 3 hours ago, CanadianSpaTech said: There should be no way for it to leak there. If there is a leak there is a problem that needs to be addressed. if I open it up what do I seal it with there is a rectangle rubber gasket that's not available I'm going to pull the heater tomorrow I have to run out and get some 3/4 inch bolts to plug the lines with as I don't want to drain the tub what should i be looking for besides cracks I will open it and take a few pics hoping tomorrow the heater ONLY leaks when the pump is on high speed it doesn't leak on low or when the recir pump is only running Quote Link to comment Share on other sites More sharing options...
Cusser Posted November 1, 2020 Report Share Posted November 1, 2020 12 hours ago, contact634 said: I was wondering if i took it apart and used silicone on the gasket and reassembled if this would work and last? if a silicone would work which one? 12 hours ago, contact634 said: if I open it up what do I seal it with there is a rectangle rubber gasket that's not available the heater ONLY leaks when the pump is on high speed it doesn't leak on low or when the recir pump is only running In your case, I would coat the original gasket with sealant from the auto parts store that states to use for cooling systems, thermostat outlets, etc., and then assemble. 2 Quote Link to comment Share on other sites More sharing options...
contact634 Posted November 4, 2020 Author Report Share Posted November 4, 2020 I took heater apart today removed gasket applied permatex the right stuff in place of oring and around each screw hole assembled and tried leaked worse then before took it apart again cleaned off permatex re installed oring reassembled ran it for 2 hours NOT a drop so i got in tub after 15 mins or so its leaking again any ideas here it started leaking AFTER I installed an ozone generator I installed an injector just a generic one perhaps its reduced the water flow enough to cause heater to leak? heater only leaks when pump is on second speed its fine on low speed Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted November 4, 2020 Report Share Posted November 4, 2020 On 11/1/2020 at 8:20 AM, Cusser said: coat the original gasket with sealant Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted November 4, 2020 Report Share Posted November 4, 2020 But where is the water coming from? Quote Link to comment Share on other sites More sharing options...
contact634 Posted November 4, 2020 Author Report Share Posted November 4, 2020 2 hours ago, CanadianSpaTech said: But where is the water coming from? its getting by the original o ring as it comes out the seam Quote Link to comment Share on other sites More sharing options...
contact634 Posted November 4, 2020 Author Report Share Posted November 4, 2020 10 hours ago, RDspaguy said: what sealant would you use there are so many out there, the o ring is orange rubber or maybe silicone? Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted November 4, 2020 Report Share Posted November 4, 2020 but where is the water coming from...The o-ring keeps water out not in or am I wrong here? @RDspaguy thoughts? Quote Link to comment Share on other sites More sharing options...
contact634 Posted November 4, 2020 Author Report Share Posted November 4, 2020 4 minutes ago, CanadianSpaTech said: but where is the water coming from...The o-ring keeps water out not in or am I wrong here? @RDspaguy thoughts? the oring keeps the water inside the heater it comes in gets heated goes out see this video (not mine) it shows the oring gasket im talking about Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted November 5, 2020 Report Share Posted November 5, 2020 3 hours ago, contact634 said: what sealant would you use there are so many out there, the o ring is orange rubber or maybe silicone? 100% silicone caulk. Rtv silicone (high temp automotive) will work but isn't necessary. 1 Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted November 5, 2020 Report Share Posted November 5, 2020 Did not know you could access the heater side thought it was a sealed unit. Now I know. THX Quote Link to comment Share on other sites More sharing options...
contact634 Posted November 5, 2020 Author Report Share Posted November 5, 2020 1 hour ago, CanadianSpaTech said: Did not know you could access the heater side thought it was a sealed unit. Now I know. THX I didn't know it opened either until it started leaking now I'm an expert and taking it in and out..... there are no serviceable parts and sundance wont sell the element or gasket alone Quote Link to comment Share on other sites More sharing options...
marin_tubber Posted August 16, 2023 Report Share Posted August 16, 2023 @contact634 did you ever figure out a solution? I am having a similar issue so trying to figure out if I should get a new one or if I can fix it somehow. Quote Link to comment Share on other sites More sharing options...
waterbear Posted August 17, 2023 Report Share Posted August 17, 2023 @marin_tubber, you posted in a 3 year old thread. You stand a better chance of getting your question answered if you start a new thread instead of tacking on to a dead thread. Quote Link to comment Share on other sites More sharing options...
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