Originally Posted by deauxrite
What do you recommend for shower and sink drains?
water and LOTS of it, is the first best choice.
'slow' drains happen from NOT flushing the solids well enough (boondockers' reflux) and
sometimes are related to the POSITIONING of the trailer,
nose DOWN even a tad slows the galley drains on rear bed models
the opposite may apply to FB layouts depending on tank placements.
for grease, food, hair and others 1time goodies, that eventually settle in the traps...
AVOID the caustic stuff.
the caustic products are bad for the waste collection down stream (trailer tanks/fittings and park systems) and leaks are messy.
use products that are enzyme/bacteria based
just like used for the holding tanks...
see post #14 in this thread (the thread is about boondockers constipation)...
and #23 in this thread...
there are MANY "rv specific" products sold,
but the Roeb' stuff
is widely available , less expensive, safe for septic and EATS pretty good.