Rhino Bottom Drains, Koi Toilet Bottom Drain, Tetra Bottom Drain, Retro Drain

Simply the best bottom drains on the market!

A bottom drain can be said to be one of the most important parts of a pond installation, in that it’s integrity is paramount to the success of the entire project.

The first step in a proper pond is ensuring that waste products are efficiently removed for processing by the filtration system. The application of bottom drains coupled with skimmers is essential in this regard.

Quality materials and superior construction differentiates the Rhino over other Spindrifter type drains. A few of the problems associated with the Spindrifter have been alleviated in the Rhino design. (see .pdf for more info)

  • The Rhino drain series have been designed to make installations easy, with a dependable seal to protect against
    hidden leaks, which can happen with most other drain flanges.
  • Rhino Series I drains are vertical discharge in your choice of 3" or 4" pipe. The Rhino II drains are 4" ported, horizontal discharge.

 

 

Photo of a Bottom Drain being installed in the floor of the pond.

 

KOITOILET™ I    
The most versatile and complete solution
for Aerated Koi Pond Bottom Drains

Most Versatile and complete solution for aerated Koi Pond Bottom Drains.

Sweep Bottom Design to eliminate trapping debris.

Full 4" height over horizontal discharge pipe.

1" Air supply connection at the bottom through center column.

Screws are fully embedded in large and strong screw pockets.

Threaded center column for easy disassemble and maintenance.

Wide and Thick Flange for better linner grip.

Slanted air done and high quality air diffuser with internal check valve function.

SKU
Description
Price
Shoppingcart
KT4
Koi ToiletI ..4-in. Air Drain
$220.00
KT42
KoiToilet II 4" Aerated Bottom Drain Quanity of [2] Free Shipping
$465.00
KOITOILET™ II
The Simple Solution for Koi Pond Bottom Drain
 

Made of heavy duty injection molded ABS.

Thick Flange and Liner ring for better liner grip.

Flare design for smooth flow.

Fites 4" Sch 40 PVC Elbow or Coupling

Excellent for liner and concrete installation.

SKU
Description
Price
Shoppingcart
KTIIDC Koi Toilet II w/Dome Cover 3" Drain $64.99  
KTIISC2

KoiToilet II w/Dome Cover 4"

Quanity of [2] Free Shipping

 $145.00  
KTIISC
KoiTolet IIw/Screen Cover 4" Drain
$124.50

 

Tetra Bottom Drain
The TetraPond Bottom Drain is an important accessory for achieving optimal water quality. Installed at the deepest point of the pond, this engineered device encourages debris and waste to flow into a circular collection chamber where it is then carried away underground via standard 3" PVC pipe (not included) to a disposal area away from the pond. It's dome-like shape is designed to force debris and waste to flow into a collection area while preventing debris from settling on top of the drain or away from the collecting vents. In seconds, accumulated debris is permanently removed.
SKU Description Price Shoppingcart
BD200 Tetra Bottom Drain 2" ..............Free Shipping $89.00  

 

 

 

 

Retro Bottom Drain [This Drain Sits On Top Of the Liner]

Large Retro Drain

Easy Installation /Minimum mainence

Handles high volumes of water, easily

For ponds 1400 to 10,000 Gallons

Multiple option pipe sizes - 1 1/2",2",3",4"

Low profile vortex design, 15" Diameter x 6" Height

Blalnced water velocity enhance rate

Durable ABS plasic construction

Ideal for gravity fed filters or pump fed systems

 
SKU
Description
Price
Shoppingcart
RDL
Retro Drain ponds 1500 to 10,000 Gallons
$89.00
RDS
Retro Drain for pond 500 to 1,500 Gallons
$73.00

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sku
Description
Price
Shoppingcart
RHI 3
Rhino Drain 3"
$79.00
RHI 4
Rhino Drain 4"
$89.00
  
RHIIA4
Rhino II Drain with Air 4"
$320.00
RHIIA4 2

Rhino II Drain with Air 4"

Quanity of [2]
$629.55
RHIA 2

Rhino II Drain with Out Air 4"

Quanity of [2]
$590.95
RHIA
Rhino II Drain with Out Air 4"
$330.00
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KOITOILET™ II
The Simple Solution for Koi Pond Bottom Drain

 

Installation Manual for the KoiToilet II

 

 

Intallin two drains in the pond. Should be 8' to 10' apart.

Click on Picture of this air pump to go to the Air Pump Page.

Air pump to run Two Rhino Drains or any Bottom Drain with an Air Difuser.
For air drain... the size of the air pump is a function of the depth that the drains are set.
A good rule is "20lpm per meter of depth".
Examples;

1 meter = 3.3' = 20 lpm for one Rhino Drain--Double the depth for Two Rhino Drains.
2 meters = 6.6' = 40 lpm for one Rhino Drain--Double the depth for Two Rhino Drains.
3 meters = 9.9' = 60 lpm for one Rhino Drain--Double the depth for Two Rhino Drains.
4 meters = 13.2' = 80 lpm for one Rhino Drain--Double the depth for Two Rhino Drains.

Now then, if he runs two air drains, you need to double the depth.
For example;
2 drains, each at 2 meters = 4 meters total = 13.2' = 80 lpm

 

Small Retro Drain

Easy Installation/Minimum maintenance

Handles high volumes of water

For ponds 500 to 1400 Gallons.

Multiple option pipe sizes 1/12",2",3"

11" Diamtere x 5" Height

Balanced water celocity entrance rate

Burable ABS plastic construction.

30% Smaller than Large Retro Drain.

 

Suggestion on

installing the Retro Drain.

Take a white plastic meat board Place the retro drain in the middle of the meat board. Drill holes in the legs of the retro drain and down thru the meat board. Take Stainless steel bolt and nut and attach the retro drain to the meat board. You may also want to find a stainless steel pipe band to attach to the pvc pipe to the meat board also so it will not slip out of the retro drain. Also prevents the suction of the water thru the pvc pipe when pump is on so that the liner doesn't get suctioned up.
Installing the Retro drain on top of the liner of the pond to the pump.

Installing a Retro Drain in a Show Tank.............................. One of the safety factors is that if water escapes from the tank there will still be 4" or more water left in the tank for the koi.