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saddlecreek · 10-11-2010, 11:02 AM

On my GB 32 ft motor home, like everyone else, my black water sensor always read 3/4 full when I knew for sure the tank was completely empty. I suspected scum on the wall of the sensors and after trying several methods I resolved to blasting away the scum with a holding tank rinser kit. Well you can purchase one as much as $25.00
After rooting through my garage I easily found all the parts to make one myself. At zero cost.
The parts requirered:
36 to 42" 1/2" pvc pipe
1- garden hose connector
1- 1/2" ball valve
1- 1/2" addapter with a cap (this can be a screw type or glue parts)
Glue all the parts and you have a very powerfull blaster. Keep the hole in the cap to 1/8'' to maximize the pressure.

Problem resolved.

puttin · 10-11-2010, 11:14 AM

Quote:

Originally Posted by saddlecreek

On my GB 32 ft motor home, like everyone else, my black water sensor always read 3/4 full when I knew for sure the tank was completely empty. I suspected scum on the wall of the sensors and after trying several methods I resolved to blasting away the scum with a holding tank rinser kit. Well you can purchase one as much as $25.00
After rooting through my garage I easily found all the parts to make one myself. At zero cost.
The parts requirered:
36 to 42" 1/2" pvc pipe
1- garden hose connector
1- 1/2" ball valve
1- 1/2" addapter with a cap (this can be a screw type or glue parts)
Glue all the parts and you have a very powerfull blaster. Keep the hole in the cap to 1/8'' to maximize the pressure.

Problem resolved.

Nice job- makes a lot of sense!

wa8yxm · 10-11-2010, 03:14 PM

Never read any of my posts on that have you.. I used a quarter inch hole in mine.. Been describing it on here for some time.

And by the way.. WORKS GREAT

Valterra makes one called the "Master Blaster" Roughly the same thing but i'm a bit concerned about hat nozzle they use.

And then there is one I think is called "The RV Twister" (not sure) has a brass spinner on the end.

Now if only I could use it on the gray tank.