Description Replacement Subair Aerated Pond Bottom Drain Dome Supplied – Subair Dome & Replacement Sealing Washer Please Note: This replacement Dome is only compatible with a SUBAIR Bottom Drain Cleaning Your Rubber Membrane Aerator Dome: From time to time your Rubber Membrane Aerator will require cleaning. Place in a bucket of clean water with the air still circulating and brush over with a nail brush/toothbrush. This will open up the pores to keep it clean. Your aerator will produce finer bubbles once it has been submerged for about 30/60 minutes
