Re: volvo flush system
They will never seal completely, but when you start it, it will suck the water into the pump.<br />If you have any questions, tow your boat to the marine repair facility of your choice, and I am sure they will show you how to use them properly.<br />That first time can really cost you if you don't know what you're doing and do it wrong.<br />And it's way hard to try to explain (without actually showing) how it's done here on a forum.<br />Even if they charged you 20 bucks and actually put it on a hose and showed you how to do it, it's cheaper than a new impeller if you screw it up.