How To Attach The Gravel Washer

Contents - Filter Maintenance

• Your gravel washer attachment comes with a hose equipped with an O-ring seal and a rock guard attachment. All you need to provide is a water or soda bottle with the end cut off.
• Please make sure the filter is turned off.
• Your gravel washer attachment is equipped with an O-ring seal then dipped in a black rubber sealing compound to lock the O-ring in place. Talcum powder or "baby powder" should be used to aid in sliding the hose connection on th U-tube. If the O-ring is removed or tubes have been shortened the O-ring will need to be reinstalled before you can use the gravel washer to prevent leaks on the U-tube side.
• The gravel washer attachment is sealed to the hose.
• Screw prepared water bottle onto the gravel washer attachment.
• Completely submerge the gravel washer under water to expel all trapped air.
• Attach the end of the gravel washer hose with the intake side of your Diatom Filter U-tube.
• Turn on the filter and begin vacuming.
• Note: Some soft drink bottles will float. Be sure not to allow the bottle to float to the surface and suck air, breaking your filters siphon.
• Note: You can leave the gravel washer attached at all times and the filter will still work properly.