Another Ballast Project

[New Guy]

Ok guys I have been running tsumani 1200gpm pumps that I have had a ton of priming issues ect. I want to make the jump to reversibles. Currently I have a single 1-1/4 thru hull and I am thinking that I can run two pumps off of that and install another 3/4 for the third. Am I going to have enough flow through the 1-1/4 to support two pumps?

[sybrmike]

Somewhere during my rebuild, I found information to support running two impeller pumps on a single 1-1/4 intake - so I did. Seems to work fine with all 1" fill and 3/4" vent hoses.

[wolfeman131]

I think you're better off with a thru hull per pump with reversibles.

[spencerwm]

Somewhere during my rebuild, I found information to support running two impeller pumps on a single 1-1/4 intake - so I did. Seems to work fine with all 1" fill and 3/4" vent hoses.

Multiple impeller pumps on a single intake does work, but over time you will see more wear on the impellers and pumps. With this said if it were an optimal solution, MasterCraft wouldn't have scrapped the system configuration after 2006.

I think you're better off with a thru hull per pump with reversibles.

We do prefer that customers do it right the first time which will minimize any chance of a system problem long term.

[chadjitsu1]

If you look for my posts I set this up on a 1 inch thru hull and posted all the results look for the post it goes over the fill time differences. Bottom line it does take longer with 2 pumps on a single thru hull fitting but its not a ton of time. I am doing the same upgrade and decided to go with one port per pump. Spencer sold me everything through wakemakers.

[sandm]

come on over. I love to drill holes in boats

as they say... silicone shmilicone... fox river isn't that deep so it won't sink far if it does.

I'd be more interested in the root cause of the priming issue?

[bergermaister]

^^ What he said. Priming on fill or drain pumps?

[New Guy]

Both. SandM and Berg both of you guys have considerably more room under floor to mount pumps. That is my biggest issue is that I have a really difficult time getting all three of the tsunami's under water level. I've fought it for two years now and I am ready to scrap it. Worse case I have some extra pumps for a bow sack, surf sack, ect.

[rdlangston13]

I want to do this too but I want detailed pictures of a boat that came with this set up factory. Pics of the thru hulls from inside the boat and outside, where the pumps are mounted, and how the hoses are routed