How to make a gravel vac more powerful?

[hybridtheoryd16]

Ok I have the largest gravel vac that I can find. It is about 24'' long and uses 5/8 OD tubing. And it is not powerful enough to pick up payara and p bass poo.

So I am trying to figure out a way to improve the design or looking for a new product that works, etc.

I do not have the biggest tank in the world or anything and was wondering what other larger tank owners use as a vac.

Thanks alot

 

[WHITECJ2OW]

the bigger diameter or circumference of the tubing the more water it sucks out and makes the suction more powerful.

 

[Kogo]

To maximize the draw on a gravel vacuum you need a hose that will not collapse and a significant drop in elevation to let gravity do it's thing. Mine works the best when i use rigid tubbing that runs out a second story window.

 

[gomezladdams]

The larger longer Vac cylinder DECREASES flow velocity and suction.,increase the diameter of the hose or the disance it drops(height from tank to where wastewater goes) to increase velocity/suction.

 

[hybridtheoryd16]

HMM well i have a about a 5' drop fron the top of the vac to the ground where the floor drain is at. So I can't really improve that. But I do have larger tubing that i can use. And I even have a tubing Y splitter that i could add in and run 2 hoses from the vac. Basically doubling the flow from the vac. Which should increase the pull some.

Thanks for the tips, I am going to try them out.

 

[brianhellno]

Hook it up to a pump with a pre-filter. The poo won't have a chance.

 

[KaiserSousay]

Hook it up to a pump with a pre-filter. The poo won't have a chance.