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rjchristensen

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  1. Hello all! Before I call a spa tech, My Coleman 411 keeps air-locking within 24 to 36 hours after I refill the tub or after burp the line between the heater and the wet end of the pump. Things I have done before this problem. 1) I installed a new pump and wet end 240 volt 2 speed (pump # 1) that circulates water for filter/heat circulate side of the system. 2) drained spa twice and filled with garden hose thru the filter intake hole. Clean filter and clean skimmer with no cracks or problems that would cause cavitation of the water flow. 3) semi new filter that was soaked and cleaned before spa was fired up after drain and fill. 4) I now notice on the bottom of the tub floor, a collection of what looks like pieces of a white/calcium looking particles the size of 1/4" or less. I vacuum them all up and a few days later there are more of them in the bottom of the tub floor. 5) There are no leaks from any of the threaded unions and no moisture inside the spa behind the spa insulated wall panels. 6) Burped the system between the heater and the wet side intake of the pump and again works fine for 24 to 36 hours before air lock again. Thank you in advance for you thoughts and wisdom!!! Rick Prineville Oregon 541 598 5455
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