by David Thompson on 25/01/2019
by Barry Dryland on 28/12/2018Good value and works as it should.
by PETER GALLICHAN on 05/11/2018
by Alan Bye on 30/10/2018good product for effective control of algae over winter
by Graham Fairley on 22/09/2018Best I've found to date. One dose every 3 months does the trick. Perfect.
by alan keen on 26/05/2018