Join Date: Jan 2003
Thanked 0 Times in 0 Posts
Rep Power: 14
I believe it was a "Domestic" (probably imported, ha) Sanipump, diaphram type, from WM. WM also carries a Whale pump with similar specs. The important factor was that it was made (so they say) for waste and wouldnt burn out if run dry accidentally. I originally considered a macerator type pump but they have a reputation for burning up when run dry and although cheaper, one replacement would nullify any savings. I figured by the time the waste had traveled thru all the hoses, the holding tank and the pump that it would be almost "macerated" anyway.
Yes the thru hull is below the water line, but not much. Seems like it belongs below the water line for reasons mentioned. Im not frightened of correctly installed thru hulls.
And Im not convinced that you dont need a siphon loop between the tank and thru hull but it may depend on your installation. Seems to me like the holding tank vent is not in the correct place to solve the problem and is not anymore useful than an open container would be in stopping siphon action. I defer to greater experience but I would think that part through.