Swimming Pool Maintenance Cost

swimming pool maintenance cost
How to clean swimming pool without using filter or with low maintenance cost?

We have swimming pool in our Society. I would like to know if there is anyway to clean the swimming pool without using filter. What r the ways to low the maintenance cost for swimming pool?..
Plz Help……..

You must run the filter. There is no other way of purifying the water.
Failure to do so will lead to bacteria, viral infections for users.