Depends on What size particles the sand is.Leela wrote: Repotting in a good quality potting mix with 1/3 sand to improve drainage??
My mix consists of particle size of 2-7mm for most pots and 2- 4 mm for minis.
Most Sand is finer than that and will clog up the holes in the soil and thus will actually be worse off.
Soil mixes are an art form in itself
Ken