Water Tank Outlet Fittings

Water Tank Connection Fittings| Water Tank Fittings| Mosquito-proof Overflow

Main Tank Fittings and Accessories When Plumbing in Your Rainwater Tank.

Water Tank Outlet Fittings | Water Tank Connection Fittings

All Our Stainless Steel Water Tanks Come with Three Standard Inclusions. Upon ordering your tank(s) you will be asked to place on a diagram where you want the fittings located.

Water Tank Outlet Fittings - Rainwater Inlet

Rainwater Inlet

Rainwater enters the tank through the inlet on the lid of the water tank.

Typically the inlet fits a 400mm diameter strainer (other sizes include 300mm and 500mm). Select Water Tanks supplies a 400mm inlet with strainer and light guard as standard.

The light guard prevents your rainwater from exposure to Ultra Violet light which encourages algae.

Water Tank Outlet Fittings - Mosquito Proof Overflow

Mosquito-proof overflow

A 90mm or 100mm sized mosquito-proof overflow fitting at the top of the tank wall, directly under the lid.

Each water tank requires an overflow connection point installed at the
top of the wall, directly under the lid. Water tanks with a capacity of 10,000 or less are fitted with a 90mm PVC corrugated overflow body. Larger tanks are fitted with a 100mm overflow body. A mosquito proof gauze is supplied with each overflow.

Water Tank Outlet Fittings - Ball Valve

Ball value

A 25mm outlet fitting together with a tested ball valve which is placed at the bottom of the tank.

Puretec Hybrid Plus Filtration System

We are suppliers of the Puretec range of filtration systems and the Puretec Hybrid Plus Filtration Systems. The Hybrid Plus Series is a complete "All in One filtration system” designed to deliver pure, clean rainwater to every appliance in the house with constant pressure.

  • Complete plug & play package with pump, filters & UV in one unit
  • 99.9% Bacteria protection
  • Suitable for other water supplies 
Puretec Hybrid P6 Select Water Tanks

Additional Water Tank Fittings

Best practice for larger tanks is to also include a High suction (HS) fitting. This is a 50mm outlet and ball valve installed on the corrugation above. This allows for efficient water balancing when other tanks are connected. The HS Fitting also protects the pumps and internal water appliances as it draws only clean water from above the sludge / anaerobic level.

You may also wish to purchase a Bucket Height Tap for example, where the tap is placed high enough from the base, to allow gravity feed of water, into a bucket placed under the tap.

Water Tank Outlet Fittings - additional fittings

Other additional fittings can also be purchased. These could include:

  • 50 mm outlet male or female
  • 50 mm outlet with ball valve – High Suction (HS) fitting
  • 50 mm outlet with ball valve and camlock (Fire fighting Qld)
  • 50 mm outlet with ball valve and storz (Fire fighting NSW)
  • Extra 90/100 mm overflow
  • Extra 25 mm female outlet
  • Extra 25 mm outlet with ball valve
  • Extra 400 mm inlet strainer with light guard
  • 450 mm screwed lid (vented)
  • Upgrade 450 mm screwed lid (if replacing 400 mm inlet strainer)
  • 500 mm Inlet strainer with light guard
  • 650 mm screwed lid
  • 150 mm overflow
  • 25 mm bucket height Tap

Lisa Hagean

Select Water Tanks Google Review Lisa Hagean 

"I recently ordered a 7500 litre stainless steel round tank from Select Water Tanks and couldn't be happier with it. The process from order to delivery was perfect and I was kept in the loop with manufacture times and a set delivery date. Communication was great through the process and I had to change the delivery date to suit me and there was no issue with this.."

Gary Turner

Select Water Tanks Google Review Gary Turner 

"A big thank you to Jason, Linda, Loyd, Damon and the team at Select Watertanks.The whole process ran on time, in fact you were able to deliver all our tanks prior to Christmas.The boys did a great job negotiating our tricky block and setting up the tanks.We highly recommend Select Watertanks"

Paul Inglis


"The team from Select Water Tanks were superb. The way they handled my new tank was especially careful and thorough. It was great watch them take it down a hill and locate on the site. Highly recommended for good product, service and interest in the customers needs."

Barbara Geitz

Select Water Tanks Google Review Barbra Geitz 

"We have just bought 3 tanks and have now installed them. We found Select Tanks very easy to work with right through to delivery. We had to change the delivery date on a number of occasions and it was never a problem. We are very happy with the quality of the tanks which look great."

More Than Just a Manufacturer of Steel Rainwater Tanks

Select Water Tanks custom make round & slimline water tanks that are longer lasting, better looking, healthier, & better for the environment. They can be made from either grade 304, marine grade 316 stainless steel or colorbond steel.

Tailored Solutions

We find the perfect solution for your rainwater harvesting system needs.

Quality Guaranteed

Highest quality Stainless steel water tanks backed by 30 years non corrosion warranty. Our Colorbond Tanks are backed by 20-years non corrosion warranty.

Industry Leading

We are the first Australian company to design and manufacture stainless steel water tanks.

Looking for Help or Advice?

If you need any help with Steel Water Tank Pricing, Custom Sizing, Delivery Charges or anything else
Please contact us today – we are here to help.