Bestway Ground Cloth is a simple, practical and effective way of prolonging the life of a Bestway pool Goes underneath a pool to protect the base from loose twigs, sharp stones, trespassing moles and damaging debris Big on benefitsThe tarpaulin sheet is laid out on a lawn or outdoor space forming a barrier between the ground and the base of a pool, protecting it from scrapes, knocks and mildew Does get tainted by mildew you simply clean it with soapy water Easy to fold up and pack away Protects grass from overflowing water from the pool Keeps the surrounding area of lawn looking green and healthy Prevents sludge from forming around the pool