I have a 20-year old pool/system with

single speed filter pump that is probably dying

non-functional single speed pump that runs the in-floor cleaning system

Aqua Rite chlorinator that we no longer use

Compool cp3810 controller

raypak gas heater that is non-functional (we never used it much)

sta-rite filter that seems to be fine

we have a built-in pool cover, the in-ground pool is about 24,000 gallons

I am looking to replace the pumps (is it wise to just change the motor on a 20-year old sta-rite pump?) but would like to know if I should take out some of these components that I'm not using, and if anything is really outdated. It might be nice to change to a solar heater but the equipment is far from a roof.

Thanks for any suggestions