Originally Posted by Sky
...Just curious why you say that?...
i agree with cats on this and here's why.
the factory btf supplies a VERY small amt of water and the sieved head has little tiny holes that get plugged easily.
so it goes from slow to slower, to reallyreallyfriggentakeanapslow after a few months.
there is also some sort of 'back flow' regulator thing that leaks or fails and is a PIA to replace.
and repair/service of the main btf fitting and plumbing is a HUGE access issue, like a ship in a bottle repair.
since the btf is so slow it takes forEVER to back fill a 35 gallon tank.
the flushking otoh, back fills a 35 gallon tank in 3-5 minutes with reasonable water pressure.
so we can back fill n drain 3-5 cycles in about the same time the btf back fills ONCE.
your s-solution is a fine macerator but takes muchmuch longer to drain a tank than a standard size slinky.
i've never really needed the 'uphill' or '100 foot' features it provides, either.
i'm not sure what the back fill rate is on the s-solution,
but you would still need to use the macerator function with each 'dump' (even if it's 99% water) and that would add significantly to tank cleaning times.
we can 'clean' the black tank really really well in 20 minutes, and i only do this every few weeks during usage.
while there are folks that have slinky leaks or drips,
i've found buying the best/thickest slinky and fittings, means NO leaks and at least 3 years of duty life (no replacements needed yet)