Pumps are not Self Priming Discharge hose must run continually upwards Reductions in hose size will reduce output Increases in hose size will not increase output Reversed polarity runs pump at 20% capacity Increase wire gauge for each additional 20 foot run Check valves are not recommended Install a vented loop for anti-siphoning Break in for 10 hours for maximum pumping Rule does not repair pumps - it is not cost efficient for the consumer Rule does not sell pump parts due to liability