If your hot tub is experiencing circulation issues or is showing either dr or HH, you may have a large pocket of air trapped within your pipework (plumbing). This reduces the circulation of the hot tub as water isn't allowed to properly flow through the heater and is known as an "airlock".
Hot Tub Airlock - Pump Won't Work When filling a spa for the first time, or upon refilling the spa after draining it, the main circulation pump that brings water in through the filter and skimmer and routes it through the heater and to the jets, may not prime properly. This situation is known as an "air lock".
Home > GFCI trips on my spa. GFCI trips on my spa. This is commonly called an "air lock." Air has become trapped in the pump, not allowing the water to enter in. I have you guys bookmarked now for all my hot tub needs and will be referring others to ur site because of ur prompt service
Is Filling Through Filter Neccessary ? Can we just take the filter out and fill through there or can I simply fill just by putting the hose in the tub ? I assume I just may have a air lock if I do this but I had a air lock anyways with my first fill with the garden hose through the filter
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Spa Airlock Troubleshooting, How to remove an Airlock in your Spa, Spa Pump Airlock Spa Air Lock - Purging the air out of the system When purging air out of the system, be sure the pump(s) are turned OFF. Open Care of your Spa or Hot tub. Spa Parts 123 is not responsible for information