linzman

Bought it on amazon. Search for bilge pump and look for the same one as you have. Pretty sure it's a Rule. Or the Atwood tsunami is good too. They don't last forever, but they're around $20, so buy 2 and have a spare. 😃

Ritter v4.0

These are nice German made pumps that have strong output and will last- provided you keep small debris out of the impeller with a screen or mesh.

floatingkiwi

Old post, but: the bilge pumps all appear to have far more flow than necessary which seems to be a poor match - has anyone used a small capacity fish pond pump or something similar?

Ritter v4.0

You can reinvent the wheel (or pump in this case) or just get one of these.

NaroEscape

FYI if you have the old blue pump in your CoolShirt box, they replaced them a couple years ago with a black “Comet” pump that seems to work better and flow more.

also, CoolShirt has a new “Evolution” shirt that has double the tubing of the current one isn’t cooling you enough.

And yes we are a CoolShirt dealer. Let me know if I can help.

linzman

That's a lot of flow compared to the tsunami pumps that were originally in the coolsuit chest.

Ritter v4.0

I have 2 Comets (head and shirt) one has higher GPM than the other but even the slower one is fine (but the other not too much either). In other words, great pumps that will both do the job.
2 caveats- don't put bleach in your box- the seals on the pumps don't like it and, keep the pumps free of debris- they can kill the impellers.