Bottom Drains
Bottom Drains
Aquadrift 4″ Bottom Drain
The Aquadrift 4″ Bottom Drain is perfect for all gravity fed installations.
Precision machine cut to the highest standard, a bottom drain you can rely on.
1″ separate pressure pipe air connection allows air to enter the drain independently from the water pipe outlet.
The membrane and backing plate on the Aquadrift bottom drain fits into a recess in the specially manufactured rubber dome . The recess in the Aquadrift bottom drain prevents the membrane from becoming detached. The complete assembly is secured to the Aquadrift bottom drain by means of a threaded stem, which also provides the air inlet.
Suitable for 4″ or 110mm pipework. Can be used with standard waste pipe with suitable connectors.
Recommended maximum air pressure 120ltrs
Can be used with no air hose to the unit, simply use the appropriate connector after your air pump
Aquadrift 4″ Bottom Drain – Cotswold Koi- Aquadrift 4″ Bottom Drain
Aquadrift Liner Flange Kit
The Aquadrift Liner Flange Kit fits the Aquadrift 4″ bottom drain and allows you to use it with a liner. This Liner flange kit comes with stainless steel screws and its pre drilled with countersunk holes.
Pro-Line 4″ Aerated Bottom Drain
The Pro-Line 4″ Bottom Drain is perfect for all gravity fed installations.
Precision machine cut to the highest standard, a bottom drain you can rely on.
1″ separate pressure pipe air connection allows air to enter the drain independently from the water pipe outlet.
Suitable for 4″ or 110mm pipework. Can be used with standard waste pipe with suitable connectors.
Pro-Line 4″ Aerated Bottom Drain – Cotswold Koi – Bottom Drains
Spindrifter Aerated Bottom Drain
The Spindrifter aerated bottom drain is known worldwide for its quality and design. This Spindrifter aerated bottom drain completely replaces the “Standard Bottom Drain.”
The most noticeable feature of the Spindrifter bottom drain is the extra 1 inch DIA Pressure pipe connection in the sump of the drain. This allows the air supply hose to enter the sump independent of the water outlet pipe, thus eliminating the possibility of restriction to the water flow and somewhere else for blanket weed to attach.
The membrane and backing plate on the Spindrifter bottom drain fits into a recess in the specially manufactured dome (provided). The recess in the Spindrifter bottom drain prevents the membrane from becoming detached. The complete assembly is secured to the Spindrifter bottom drain by means of a stem, which also provides the air inlet. Most water pipe sizes can be accommodated, the customer to specify. The air inlet is via a nickel plated connector.
Available Sizes:
- 4 inch Bottom Drain For Concrete comes with direct air feed kit
- 3 inch Bottom Drain For Concrete comes with direct air feed kit
- 2 inch Bottom Drain For Concrete
Recommended Air Flow:
- Bottom Drain at around 4/5 feet deep requires a 40lpm Air pump.
Spindrifter Aerated Bottom Drain – pond construcition – cotswold koi
Spindrifter Liner Flange Kits
The Spindrifter liner Flange Kit allows you to use the drain with a liner.
This comes complete with fixings.
4″ Flange
- 350mm external diameter
- 250mm internal diameter
- 5mm thick
- 50mm flange width
- 12 holes
3″ Flange
- 295mm external diameter
- 200mm internal diameter
- 5mm thick
- 48mm flange width
- 8 holes
2″ Flange
- 238mm external diameter
- 160mm internal diameter
- 5mm thick
- 40mm flange width
- 6 holes
Spindrifter 1 Inch Direct Air Feed Kit
Spindrifter Aerated Bottom Drain Twin Inlets
The Spindrifter bottom drain is known worldwide for its quality and design. This unit completely replaces the “Standard Bottom Drain.”
The most noticeable feature is the extra connection in the sump of the drain. This allows the air supply hose to enter the sump independently of the water outlet pipe, thus eliminating the possibility of restriction to the water flow and somewhere else for blanket weed to attach. The membrane and backing plate fit into a recess in the specially manufactured dome (provided). The recess in the dome prevents the membrane from becoming detached. The complete assembly is secured to the bottom drain by means of stem, which also provides the air inlet. Most water pipe sizes can be accommodated, the customer to specify. The air inlet is via a nickel-plated connector.
Economy Bottom Drains With Ring Aerator
All Koi ponds should be fitted with bottom drains, and we strongly recommend this.
These Economy Bottom Drains With Ring Aerator are well made and are suited for use with 110mm or 50mm waste pipe. The dome is removable with a large integral surface mounted air ring diffuser around the outer edge
We cannot express the importance of installing a bottom drain when planning and building your pond and these drains provide a cost effective way of doing this.
Available in 50mm and 110mm .
The Bottom Drain comes complete with air tube
*NOTE: It can be used with pressure pipe with an adapter. 4 Inch Socket To 110mm Plain Male Converter
Economy Bottom Drains With Ring Aerator – Cotswold Koi
Economy Bottom Drains
All Koi ponds should be fitted with bottom drains, and we strongly recommend this.
These economy bottom drains are well made and are suited for use with 110mm or 50mm waste pipe.
We cannot express the importance of installing a bottom drain when planning and building your pond and these drains provide a cost effective way of doing this.
*NOTE: It can be used with pressure pipe with an adapter. 4 Inch Socket To 110mm Plain Male Converter
Economy Bottom Drains – pond construction – cotswold koi
Retro Fit Bottom Drain
The Retro Fit Bottom Drain, Portable Bottom Dome / Suction Drain
Improves water circulation, helps remove suspended particles and debris from the bottom of your pond reducing maintenance.
It is said that you can not beat a bottom drain system. If you have a pond that does not have a bottom drain but wish you had installed one, or do you have a bottom drain and want to install another here is the answer.
A bottom dome that sits on the floor of your pond which requires no digging or intensive labour. Just simply place the self -weighted bottom dome in your pond and attach a pipe from either an internal pump such as an oase aquamax or promax (these pumps have two inlets) or an external pond pump and enjoy all the benefits of a bottom drain with minimal expense.
Retro Fit Bottom Drain – pond construction – Cotswold koi
Tommy Bottom Drains
These Tommy Bottom Drains are perfect for those using mid water feeds to the filter systems and are worried about pulling fish in to the filter, pumps etc.
The Tommy Drain has its outlet at the Bottom of the Drain instead of the side of the drain like typical bottom drains.
The Tommy Drain has a removable lid with stainless Steel screws and a flange ring for fitting to liner or concrete ponds.
The Tommy Drain can still be used mounted in the pond base if required, such as for a quarantine system or where the outlet is best suited at the bottom of the drain instead of the side.
The Tommy Bottom Drains are suitable for outlets from the side or bottom of your pond or filter.
Tommy Bottom Drains – pond construction – cotswold koi
4 Inch Socket To 110mm Plain Male Converter
The 4 Inch Socket To 110mm Plain Male Converter is designed to fit inside a bottom drain to convert the standard 4″ opening to 110mm.
Draco Retro Fit Bottom Drain
It is said that you can not beat a bottom drain system. If you have a pond that does not have a bottom drain but wish you had installed one, or do you have a bottom drain and want to install another here is the answer.
Allows you to retrofit a bottom drain into your pond and change the system from pump fed to a true gravity fed filter system if filter is lowed to height of pond.
Comes complete with everything that is required to install
3” internal smooth wall pipe (3m standard additional can be purchased)
14 inch long through wall pipe
Angled inlet bottom drain unit
10ft pipe = 2.5cm head drop @ 2200 UK gallons per hour / 10000 litres per hour
15ft pipe = 2.5cm head drop @ 1900 UK gallons per hour / 8600 litres per hour
Draco Retro Fit Bottom Drain – Cotswold Koi-Pond Building Supplies