Clean area note In order to peotect vacuum, the cleaner can work on curved surfaces but do not clean the stair on the pool. Cleaning type The pool vacuum can clean algae, dirt and dust but can not clean leaves. Underwater work Just drop into the base of pool and the max deep is 9.8ft. Product specification Vacuum head, blue skirt and hose size display. Accessories display Comes with ten hoses, one weight, one regulating valve, diaphragm. If the hose is too long or too short, you can increase or reduce hose. Hose diameter Each hose diameter is 1.96 inch. There a special hose which need to connect to pool vacuum, and other hose neen to connect with that. Ten hoses Come with 10 hoses total 33 ft, each hose is 3.3 ft. White little weight function White little weight can keep balance when you clean the pool and seal the hose. Grey disc installation Need to install the grey disc counterclockwise. No air in hoses In order to get great usage effect, should be no air in hoses before using. Make sure the hoses in no leak and the pressure is normal. Diaphragm The diaphragm is silent and service life is 200 hours. NOTE: 1.If the vacuum doesn’t work, please check diaphragm especially of the diaphragm mouth inside see if there is a gap inside and check if any small rock stuck in the diaphragm. 2. If suction is too large or small, need to adjust the regulating valve. 3. If vacuum stop work when it reaches the surface of the pool,you need to adjsut regulating valve and adjust suction lower. Problem: Cleaner is sluggish or has stopped operating. Solution: ● Check if the pump is ON and / or primed. ● Check Cleaner head for blockages. ● Clean and empty pump basket and empty skimmer/weir basket. ● Ensure the filtration system is thoroughly cleaned. Clean sand/cartridge filters on your pool pump as per manufacturers specifications. ● Inspect the regulator valve and flush away any debris build-up. ● Check the Mat for wear. ● Make sure the curved tips of the Mat are facing upwards. ● Ensure that the skimmer/weir vacuum lid is fitted correctly and check for cracks. ● Check the hose for blockage. ● Check the hose for leaks by lifting each section above water while pump is running. ● Consult a pool shop in your area. Problem: Cleaner travels in a repetitive pattern. Solution: ● Adjust return jets downwards. ● Verify proper hose length. ● Ensure cleaner sits flush with the pool floor. Adjust the position of hose weight if necessary. ● This should be done at the deepest part of the pool. ● Remove or add one hose section. ● Inspect the Regulator Valve and flush away any debris build-up. ● Check that the hose sections are straight; if not, lay hose in a straight line in the sun to relax the memory. ● Twist each hose section a half-turn at each connection point.