There has been a lot of talk about the 3-way valve piping configuration on low water cutoffs. The end of the heating season is quickly approaching.
Summer is the time to dismantle boilers for internal inspections.
This should include cast iron boilers on steam service. However, the low water cut-offs should be dismantled annually for cleaning, checking for worn or otherwise defective parts and the automatic water feeder operation should be checked and the strainer cleaned. It is also a good time to repair all piping and pump leaks. With Spring comes the air conditioning season. Contactor points should be checked and the cable connections should be tightened before start-up.