Rain Tank Systems

For a straight forward, all-inclusive solution to rainwater storage, the 3P Technik Rain Tank Systems are the ideal package. Just specify the number of tanks you want to buy and the correct package will consist of all the parts, tanks and connectors you need, making the buying process much simpler. Also included in these packages is a Garden Steelpump to give you great water pressure from a hose, thereby saving your arms and back aching from carrying a watering can.

Large rainwater storage tanks plus accessories in a single package

These systems offer all the parts you need to create a simple, scalable water collection and storage system. One of the great benefits of a large volume storage and pump combination is that you can water your garden for a meaningful amount of time. If you own a standard 190 or 200 litre water butt and connect a pump (like the Garden Steelpump that we supply) to it then a full water butt will be emptied in less than 4 minutes. How far will that get you? With our systems, each tank offers just under a quarter of an hour of watering with a pump. So for example if you have a three tank system which starts full, then you can water your garden for 5 minutes per day, and it will keep going until the ninth day.

The premium quality wall tank is a big step up from a standard water butt. It provides capacity for 750 litres (165 gallons) of garden rainwater in a small footprint. This tank is suitable for watering-can use or pumping, and is made from polyethylene. When empty each tank weighs a pretty solid 38kg. The dimensions of the tank are 800mm x 600mm x 1790mm - so its just short of six feet tall! The Water Tank is available in four colours: Matt black, Sandstone (yellow/brown), Granite (grey), and British Racing Green. Please choose your colour preference at the bottom of this page.

Each tank comes with a 3/4 inch brass tap connector on the front (with a basic hi-flow tap supplied), and two more 3/4 inch brass tank interconnecting points (one each side). Also supplied are a metal retention bracket, hole saw and rubber grommet sealing ring (for use with the 3P Filter Collector).

The inclusion of a powerful Garden Steelpump means that you can enjoy the pressure and convenience of mains water while you are actually using free rainwater. Simply connect a hose or tap to the pump and it will run when you open the tap and automatically shut off when you close it, so there is no need to run and switch the pump off. The pump can supply water at 4 bar of pressure allowing it to push water uphill as high as 40 metres. Using the pump, the flow rate through a 1/2 inch hosepipe is similar to mains water. The pump requires filtered water so we include a filter collecter to remove leaves and debris before they get into the tank.

Pump technical details:  

• Power rating: 600W
• Weight: 15kg
• Maximum flow rate: 3,000 litres/ hour
• Supply voltage: 230/240V
• Water resistance: IP68 (it is submersible)
• Power cable: 10 metres in length
• Inlet  -  1" Female BSP
• Outlet  -  1.25" Female BSP
• Dimensions: Length - 477mm, Width - 200mm, Height - 226mm

What's included in the Rain Tank Systems?

Each system includes one or more 750 litre (165 gallon) tanks in either black, grey, green or sandstone colour (please choose at the bottom of this page), a sight gauge (since the tanks have no lids this gauge will show you the water level), the Garden Steelpump, easy-fit pump connection point with shut off valve, a rainwater filter-diverter (which you install on the down-pipe), and a 3/4 inch hi-flow tap.

	The filter collector cleanses the rainwater before diverting it sideways into the tank, while leaves and debris continue down to the drain. When the Rain-Tanks are full the filter collector automatically sends excess rainwater to the drain as usual. The unique removable filter cartridge can be taken out in seconds for cleaning. Note that this filter collector will also fit square downpipes of width between 65mm and 75mm.
	This outlet multi hosetail connection from the pump allows you to use 1/2 inch (13mm), 3/4 inch (19mm) or 1 inch (25mm) hoses.
	The Rain Tank System has a compact, sturdy metal valve and simple, reliable brass connector enabling you to shut off the outlet from the Rain Tank and disconnect the pump for storage. The connection kit also includes 1 metre of heavy duty 1 inch hose.
	The Tank to Tank connection kits consist of sturdy 25mm diameter hoses with metal threaded connectors.

Please choose your model using the table below as reference. Note that you will need to specify the colour of tank(s) that you would like at the bottom of this page.

Model	Description
System 750	A one tank system consisting of one 750 litre 3P Technik Wall Tank (water butt), one filter collector, one sight gauge, one Garden Steelpump, one tank to pump connection kit, and an outlet multi hosetail connector (to fit one inch, 3/4 inch and 1/2 inch garden hoses)
System 1500	A two tank system consisting of two 750 litre 3P Technik Wall Tanks, one filter collector, one sight gauge, one tank to tank connector kit, one Garden Steelpump, one tank to pump connection kit, and an outlet multi hosetail connector (to fit one inch, 3/4 inch and 1/2 inch garden hoses)
System 2250	A three tank system consisting of three 750 litre 3P Technik Wall Tanks, one filter collector, one sight gauge, two tank to tank connector kits, one Garden Steelpump, one tank to pump connection kit, and an outlet multi hosetail connector (to fit one inch, 3/4 inch and 1/2 inch garden hoses)
System 3000	A four tank system consisting of four 750 litre 3P Technik Wall Tanks, one filter collector, one sight gauge, three tank to tank connector kits, one Garden Steelpump, one tank to pump connection kit, and an outlet multi hosetail connector (to fit one inch, 3/4 inch and 1/2 inch garden hoses)
System 3750	A top end, five tank system consisting of five 750 litre 3P Technik Wall Tanks, one filter collector, one sight gauge, four tank to tank connector kits, one Garden Steelpump, one tank to pump connection kit, and an outlet multi hosetail connector (to fit one inch, 3/4 inch and 1/2 inch garden hoses)

Note: if you don't want the full system including a pump, have a look at our offers on tanks only by clicking here. The images below show an old model of pump. The Garden Steelpump supplied is the silver model shown in the image at the top of this page.