HK-D40L/40LP Diaphragm Set (2 pc per set)

Repair your Matala Hakko 40 liter pump with this replacement diaphragm set. Repairs are simple with an easy to follow guide.

Tools Needed:

• Medium phillips screwdriver
• Small phillips screwdriver
• Medium pair of pliers

Note: If your diaphragms are blowing out frequently, you most likely have an excess back pressure problem in your design. Check that your air delivery tube is large diameter and there are no kinks in the hose.

Check your air diffusers for clogging. Ceramic style air stones typically need cleaning with muriatic acid every 3. Check that the number of air diffusers is sufficient to handle the air output of your Hakko pump. Too few diffusers will create excess back pressure.