Enough to pressurize for the drain blockage. Thanks.

Bugs . Review provider: walmart.com

Don't call a plumber just yet

I love this little guy, just attach to a hose and it will blow just about anything in your pipes in a few minutes you are done! It fills most sizes, unless you need a very small one. And I have one of those now, and it works quick and hard. Its alot better than a snake is turn and twist, but a snake works on hard things like toys, small roots, etc. So good to have all devices to get the job done. Save on plumber when you can. But try this first, you just listen to the water fill up the tube, it enlarges size of pipe, then the power of the rush of water pushing through clogged pipes is music to your ears. and $$ saved. just clean and put up until you need again,

Awindspirit . Review provider: walmart.com