Running a pump dry will not damage the motor bearings at all. It is the pump seal that gets damaged. Some of the more modern pumps have enough water in them to allow the pump to run dry for quite a long time before seal damage occurs. It is the heat build up from the friction on the seal that causes failure. If you have run your pump dry and see any leakage at all, replace the seal immediately. The leaking water may "crawl" up the motor shaft and that is what will damage the motor bearings.
No all pool motors have sealed bearings
Until the pool is open for business
Not long the sun is bad for it
1 month
You should be able to use it as soon as there is water in the pool
Wait one hour for a good protective measure.
my northstar pool pump is making noise.I think it might need new bearings.How do I take the motor off./
A pebble Tec pool can become damaged after being left empty for as little as six hours. The sun is the enemy of a drained pool.
You should wait about 2 weeks before using a wheeled vac head OR follow the advice of the installer. He is the last authority on that subject.
If your pool is above ground it does not matter, But if your pool is in ground and you drain it it will act like a boat and float if the water table rises.
Acid dilutes very fast, add it to your pool (while running to help circulation) and you should be ready to swim in about 30min. Best way to add it is by using a 5gal bucket, fill it so that you have room to add the acid then walk around the pool pouring into the edges of the pool. This will keep from damaging your plaster especially if your pool has dark plaster or pebble tech plaster. Hope you found this helpful..
If tadpoles are resistant to pool chemicals, check your local hardware store for a chemical shock treatment. These are generally formulated to be gentle on pool equipment. It will mean staying out of your pool for a week or more, but the tadpoles will eventually die.