SAE bottom drain (SBD4)
This 4" bottom drain is for use in liner ponds and concrete ponds. Its anti-vortex drain cover forces water to enter from the bottom of the pond, and its large intake helps reduce pump pressure. SAE standard pipe connection, use with 4" PVC.
Bent bottom drains (BDC3)
Nishikoi 90º bottom drains are designed for use in ponds of all sizes. Sweeping corner prevents waste collection.
ABS bottom drain (D3)
This bottom drain has a 12" diameter dome antivortex fish barrier and slip PVC pipe connection for low restriction drainage. It also features ABS construction. Total height is 6".
Vacuum bottom drain (16361)
This unique vacuum drain removes debris that settles at the lowest point in the pond.
It can be retrofitted into existing ponds with ease, requiring no excavation.
Bottom drain with air diffuser (FD3)
This drain works very well in fish and koi ponds as it provides aeration while improving the bottom-cleaning action of the drain. Induced current from rising bubbles draws sediment into the drain. Has a 3/4" FNPT air supply connection and the cfm range is .5 to 1.5. An adaptation of the D3 drain.
Bottom drain for big ponds (D4)
This robust, polyethylene drain has a 10" water opening, but the domed lid prevents fish larger than 1/2" from escaping. Flexible, rubber connector clamps to 4" pipe for low restriction drainage. Can be used with liners and concrete or fiberglass ponds in fresh or salt water. 12" tall, 24" long.