Promax Tank Outlet With Corrugated Flange 25mm

This  25mm Tank Outlet comes complete with the corrugated rubber gasket kit suitable for use on the Promax corrugated tanks.

Recommended Holesaw Size - 34mm or 1 3/8” 

$69.00 (incl. GST)

Code Description Diameter(mm)
PMXAC000250C Promax Tank Outlet With Corrugated Flange 25mm 25

Our products are available to be purchased through most leading rural and plumbing merchants.

Regular nationwide stockists include: 


Mico Pipelines


Some hold a standard range in stock, others will order on request.

Yes, this is possible with the 25 & 50mm corrugated tank fittings.

Promax Corrugated Tank Fittings

1. Use a professional tank cleaning company to do this. They are able to vacuum the base of your tank without emptying the water. Use google to search local cleaning companies for your area.

2. Clean the tank yourself. See below links for instructions on how to do this.

How to Siphon the base of your water tank.

Water Tank Cleaning - Happy Tanks can clean your Tank if you are in the Auckland and Northland regions.

3. Install a Tank Vac. These will remove buildup of sediment already present and help keep your tank clean all the time. Only works when the tank is overflowing.