Hardness Blocker for water from the well (borehole): 
The Hardnes Blocker Inhibitor is designed to drop the Limescale levels and other minerals , Iron within your water. Initial dose varies on tub size, but for 1000litres initial dose of 50ml should be sufficient for most and then a cap full once a week there after. 
This will help with limescale build up and prevent the need to descale your pumps.
1LIn general this product will help You clear the hardnes and iron from water. If Your water look white or red, brown immediately after filling hot tub or swimming pool with water use this product. This product will clear water in 24 hours.   Hardness Blocker: 1000 ml - WWW.HOTTUBIRELAND.IE Optimises environment to maintain high quality and sanitary water. Clear water - the pleasure of bathing Characteristics: Mastersil hardness blocker is a liquid formulation for the treatment of mineralized (Water from the borehole or well) pool water or water into the hot tub. The preparation is blocked leading to hard water minerals and possibly dissolved metals-causing turbidity (eg iron, manganese) in a stable firmly bound complex. The treated water does not generate deposits or tarnish and thus contributes to the health of independence.