I have a small leak, unknown place. Water will go down 4-5 inches a week. I tried the pour in quick fix stuff (no filter)from the store when the tub was fill and set at the lowest temp and the water did not leak for 2 weeks. Drained, filled, put the temp up to mid 90's. Didn't use it for a week, went out last night and water was down again, OH & FLO errors, OH went away with tub open and new water added. FLO message all the time now, heater works, no flow during planned circ times. When I manually turn any jet on FLO gows away and jets work fine.

Noticed that during jet operation that when I turn the diverter for seat /whirlpool acton that the action from the heater vent seems to change although hard to tell. Seems when I have the diverter set for 50/50 little bubble action or big bubbles from the heater vent. When switched more to full jet or whirlpool only I see more movement from the heater, is it me?

The last flow sensor was replaced May 2005 along with temp sensor. Could the leak stuff garbage up the flow sensor (did not have the error when running at 80 degrees) after refill? SHould I try more leak stuff at high temp? My wife sayes to fill it in or toss it over the deck (sits about 1 foot above deck floor). I'm tending to agree as the last repair cost $460, a prior flow switch cost me half that, the small panel was a warrenty repair and I think I had the flo switch fixed 3 times overall. Sundance is not my favorite anymore.