OK. we forget what winter is really like. We have had 4 or 5 years without any real winter. It is HERE this year. I have checked in the first “frozen” pump. If you leave any water, thinner, etc in your pump, you risk a burst fluid section. Even if you leave the prime valve open, if the fluid section isn’t empty, it will freeze and break parts.
Clean your pump completely and then open the prime valve and run it dry! Removing the hose and gun is also a good idea. I recommend that the last “clear water” rinse contain 20% anti-freeze. Even so, pump it dry and store it out of all weather.
