How would you rewrite the following claim to remedy problems of ambiguity?
Do not assume that common sense by itself solves the problem. I flush the cooling system regularly and just put in new thermostats.
I flush the cooling system by putting in new thermostats.
I know that I flushed the cooling system because I put in new thermostats.
I flush the cooling system regularly and I have just put in new thermostats.
Whenever I put in new thermostats, I always flush the cooling system.