In order to restore the bright white surface you need to use an acid wash around every five years.
Draining an inground pool with liner.
In addition your vinyl lined pool walls may not be strong enough to.
If you drain your pool and the bottom is below the surface level of the water table then the water from outside with seep in under your liner and it ll appear to float up from the bottom.
Conducting an inground pool drain is something that all pool owners have to deal with at some point.
The only thing keeping your liner attached to the pool wall is that the water pressure on the inside is greater than that on the outside.
The older the vinyl material is the more likely this is to happen.
Draining a vinyl lined inground pool can be difficult because the liner is fragile and can tear or rip easily.
If you drain your pool you can cause your vinyl pool liner to shrink and upon refilling if the liner has lost its elasticity it can cause the liner to rip or tear.
Whether it is the end of the swimming season or the pool needs to be drained for some other reason you will have to get the water out at some point.
It s acceptable to drain the pool a few more inches below that if you live in an area that gets heavy precipitation during the winter months.
If permanent stains do develop you can drain your pool water and acid wash your pool if it has a plaster liner.
Older pools may not have been built structurally to hold back the weight of the dirt against it when the pool is drained which can then cause the walls to collapse.
This is not something that you can practice all of the time as it involves a purposeful stripping of a thin layer of pool plaster.
Draining an inground vinyl liner pool for the winter.
The water in the pool helps hold the liner into place.
If you have an above ground pool with a vinyl pool liner drain the pool to about 1 inch below the bottom of the skimmer mouth.
If you have never done it before it might seem like a big job.
This type of pool is the most difficult to drain and should only be done by a professional.
Draining a pool is a potential risky business for even gunite or plastered pools but it will usually be a disaster on a vinyl liner pool.
Inground vinyl liner pools.
The liner can also become hard and brittle.