Pump primes perfectly fine without the John Guest fittings on the DDR but as soon as I put them in the fitting the DDR itself won't pull fluid? Any advice/? The fittings are in securely and snapped.. They can not be pulled out so there is no air leaking, pumps will not prime but do prime if removed from the fittings and inserted into the DDR manually.. I feel it is a issue with the plastic tubing within the DDR containers..
Can I increase the speed of the pump head to create more of a siphon or is my DDR busted..
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