Stain Drop Stain Removal Verification Test Kit determines what Stain Drop products are best for pool stain removal through the use of four topical tests. This allows pool professionals and pool owners to verify the correct treatment needed for a particular pool stain without the guesswork. Each S.R.V Kit contains three packets of three powerful stain removers plus six dosing pouches for wall or deep water stains and comes complete with a detailed instructional booklet.
