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  1. M

    Doheny Advantage robot

    Moved to a new house with an existing pool. Decided I need a robot since there's plenty of leaves that make it in the pool. I ran across this vac on sale and it says 'powered by dolphin', so I assume it's just a Dolphin cleaner re-branded...
  2. M

    Older Hayward H400 turning on by itself

    I have a ~2006 Hayward H400 heater (with the metal case) hooked up to Hayward Pro Logic automation controller from the same year. Quite some time ago (2 years), the keypad on the heater quit working. I thought no big deal as I always set the temp via the pool controller. About 6 months ago...
  3. M

    CYA Disappearing

    So, did a full test on Friday to open the pool side for swimming - we use the spa all winter long. Water was clear, but I noticed that the CL level seemed low considering I had set the cell at 100% on a 5 hour a day run. I soon discovered why: for the 2nd year in a row, CYA was zero. Added...
  4. M

    Hard water and Scale

    Hello all. We're about to have our new pool ans spa completed. This is not my first one, and I have used the BBB method in the past for maintenance - although I didn't know it had a name - I just thought it was me being ultra cheap :-D . Anyway, our fill water is very hard and I was...