(Soft water is pure water.) This builds up over time and eventually the water flow is blocked off and the item no longer functions correctly. A water descaler dissolves the calcium or magnesium which has built up.The calcium or magnesium is absorbed from the ground into the water supply so whether you have hard or soft water is dependant on the ground where you live.cale is the solid layer that is deposited on the surfaces inside pipes, boilers, heaters etc. Chemically, scale is combination of water insoluble salts of Calcium and Magnesium-CaCO3 (limescale) and MgCO3.
Tongue weight is the portion of the trailerâs weight that pushes down on the hitch (usually between 10 and 15 percent), plus the weight of the part of the tow vehicle to the rear of its back wheels. Cargo in the tow vehicleâs trunk therefore increases tongue weight.f the trailer weighs half of the tow vehicleâs weight or more, a weight distribution hitch is necessary. For some trailers, weight distribution may also be required by law. These hitches do not mean that the driver no longer has to keep the trailer balanced, nor do they increase the maximum weight a vehicle can pull.
Class I. 1  Class I hitches are weight carrying (WC) hitches rated up to 2000 lbs. 2  gross trailer weight (GTW) with a maximum trailer tongue weight (TW) of 200 lbs. 3  A Class I hitch usually has a 1-1/4 square receiver opening.lass I. 1  Class I hitches are weight carrying (WC) hitches rated up to 2000 lbs. 2  A Class I hitch usually has a 1-1/4 square receiver opening. 3  A higher class drawbar does not increase the towing capacity of the hitch. 4  Class I hitches usually attach to the bumper, truck pan or vehicle frame.