Did you
know that when in use the oil will expand when it gets hot and can cause oil
seals to pop out if you are not using the vented dipstick. That is why we ship
one with every pump sold. Please make sure to swap the travel plug out for the
vented dipstick.
http://www.watercannon.com/default.aspx?
http://www.watercannon.com/c-183-pumps.aspx
1800-699-2551