i have a septic system at my home the tanks fill up afterrain?

Hey, I'm NO Pro, but is your Septic large enough? If it is, I'd still suspect the lines are not draining properly. Did this man flush out the vent-pipe going up through your roof, with the water hose? This can cause problems, but not sure just what kinds of problems. I do have a Septic, & they ARE vented, & it's important that they stay that way. Mine is an older Septic, though, & I don't know how the newer ones are done. I would get a few more opinions, though, from the pros , though. Maybe some will answer this, for you.

it's probably ridded itself of natural enzimes that help break down the waste. better act fast before your problem gets worse.

close the tops and the rain water will not get in.