Lightning is not the safest thing to do! While we don't mind getting wet, we want to keep our guys safe. If it is raining your pool will be serviced as normal. If there is lightning, we will look at the radar and see if we can wait the storm out and service your pool at a later time that day. If radar shows storms most of the day then a "severe weather service" will be performed; checking and adjusting chemicals, emptying baskets, and backwashing if needed however the pool will not be cleaned.