Maintenance - Filters Main suction filter The main suction filter is situated alongside the pump on the back of the sprayer To remove the filter element firstly turn the yellow cap anti-clockwise on the underside of the filter bowl, unscrew the threaded ring, and remove together with the lower bowl . The element can then be removed for cleaning. After cleaning reassemble ensuring the sealing ring is correctly seated. The bowl should not be removed whilst there is chemical in the spray tank. Main suction filter assembly Main pressure filter The main pressure filter is situated on the back of the sprayer. It is a flushable type of filter which means it can be flushed out at any time without having to remove the bowl. (see below) When spraying some chemicals it may be advisable to flush the filter out every few tank loads. The bowl should, however, be removed periodically to inspect the element and to give it a thorough clean. This time period will depend on what type of chemicals you are using - please use your own judgement. It should always be removed when giving the sprayer a thorough wash out. Main pressure filter assy < 33 >