In-ground pool maintenance

Here's all the steps for a good in-ground pool maintenance :

2:11 - skimmer
3:52 - pump
8:02 - three-way valve
9:10 - ball valve
11:06 - filter
11:58 - filter : when to clean it
13:11 - filter : how to clean it
17:13 - water heaters
19:17 - water treatment systems
20:07 - salt system : adding salt
23:50 - salt system : chlorine production
26:02 - salt system : cleaning the cell
27:19 - ozone system
30:28 - water return
31:50 - vacuuming
35:30 - water chemistry