You need to vacuum the mud to waste. ie: vacuum not through your filter as you normally would, but using a separate pump and discharging vacuumed mud/water to waste (somewhere other than back into the pool).
50
I have an inground spa when I turn on the jets they start then stop. I have put pressure in the line nothing clean the filter nothing. What can I do
You rub vigorously with hot, soapy water.
It is generally not recommended to put fiberglass over aluminum, however, people do it. An epoxy polymer resin is usually suggested, and the fiberglass should be very clean.
No
Turpentine will not harm a fiberglass bathtub. Small amounts of turpentine can be used to clean stubborn adhesives in the bathtub.
get a Mr. Clean Magic Eraser .... seriously, they are freakin magic.
A light acid wash should remove the chalk.
ask a pool care tech at your local pool supplier.
by a wet cloth soaked in salty water
take some vinegar and mix it in a bucket of water and use a rag to clean the outside... or you could put it in a spray bottle
Usa a shop vac.