LAGERRENSINING   VINTERKAMPANJ upp till -30%

With the help of the valve, it controls the operation of the filter. During operation, the valve is in the filtration position. By setting the valve in the appropriate position, various maintenance activities are performed on the filter, such as filter rinsing = cleaning the sand bed, circulation = water movement bypassing the filter tank to force circulation in the pipeline faster, closing the water circuit, winter position.