The roller is placed in a pit underneath the bottom of the pool. This modification demands a bit more construction work but does not require more space. This system is suitable for swimming pools with overflow and skimmer pools with high water level. The pit is covered by a panel made of PVC or Stainless Steel. The panel structure itself is made of massive Stainless Steel which allows people to stand on it.
This type of installation enables you to use optimally the entire length of the pool.
