The best way to avoid buildup is to REALLY flush the system after each usage. The salient point is to remove ALL of the urine from the hoses, for it is the interaction between urine and the dissolved salts that causes the buildup. This means lots of pumping after the bowl is empty -- exact number depends on the pump capacity and the diameter and length of your hoses.
Obviously, if you are using a holding tank
, this method is counter productive! The vinegar method does help if done frequently, but periodic removal
and bashing on the dock
is still in your future if you use this method.
This chemical reaction is one of nature's cruel jokes on yotties!