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    Need help diagnosing pool heater problem

    I have a Comfortzone (Hayward) 250K btu natural gas pool heater and I hoping someone can help me diagnose the problem. It is electronic ignition and the spark is fine and lites the pilot quickly. The main burner then comes on strong for about 2-3 seconds but then shuts off. It will continue...
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    nautilus o-ring round or square?

    I'm replacing my 18" oring on my stainless steel (old)Pac fab DE filter. I took it apart and the oring is square but at the pool shop the new one is round. Does it make a difference or is this OK? Thanks for any info.
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    Leaking Nautilus DE filter

    I have a old (1987) Nautilus Pac-Fab stanless steel DE filter leaking in the middle where the 2 halves join. Any suggestions in addition to replacing the o-ring? And what is the proper lube - I watched a pool guy use petroleum jelly but I didn't think that was right.