Huge volume - Huge pressure - Under constant use

Re: The SIS Ballcock - Stainless, Indestructible, Simple.

Half of the water on our 600 cow dairy operation goes through a tank system. We have had huge frustration with leaking and totally failing ballcocks.
The tanks are in constant view so either overflowing or failure to open was observed almost daily.
The problem has now been solved, for over a year, with the installation of a SIS Ballcock.
Kieran Bourke
Huge volume. Huge pressure. Under constant use.

What our customers say

The SIS Ballcock - Stainless, Indestructible, Simple. Half of the water on our 600 cow dairy operation goes through a tank system. We have had huge frustration with leaking and totally failing ballcocks. The problem has now been solved, for over a year, with the installation of a SIS Ballcock.


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Kieran Bourke

As a reseller of farm ballcocks, I think we have just had the rug pulled out from under our feet. Hawera Rewinds have just released a ballcock that is SO SIMPLE, it will make you smile. Virtually indestructible, made out of solid 316 stainless steel, you will only need to buy it once.


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Dave Mac

It has been very exciting to offer my property and our water supply system to help in the development of the SIS Ballcock. We have been installing the SIS Ballcock since the first prototype, back in 2014. We now have over 100 SIS Ballcocks installed - not one failure or problem.


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Raymond J. Collins