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The next meeting..

Thursday, October 20, 2022 –  7 for 7:30pm

Guest Speaker:

Charlie Madden from TideWater Pty. Ltd.


Making fresh water from the sea, without the need for fuel, or electricity, or their emissions.

The TideWater unit uses tide movement of the water, to make the pressure needed to force brine through a standard ships reverse osmosis membrane, to make fresh water.

Come and listen to Charlie, as he explains this incredible system of producing fresh water, initially for supplying water to the over 1 million head of cattle here in South Australia.

Charlie Madden
TideWater Pty Ltd


The Inventors Association of SA meetings are run under the instruction and health guidelines issued by the Government of South Australia. (from July 2020)

  • If you are not feeling well, please do not attend this meeting.

Stay safe and keep on inventing, innovating and tinkering with those ideas!

Eric Rodda
President – Inventors SA

Meetings are held at:
19 on Green Community Centre,
19 Green Street, Brompton. SA 5007 

Visitors are asked to pay a $10.00 fee per meeting.

If you (individual) decide to join on that night, this fee will be deducted from your membership fee.
Please see the Membership page for the fee structure.

Visitor’s Half price Entry (First meeting)
Click on the coupon below for more information…

A meal before the meeting?
All members and visitors are welcome to meet anytime from 5:30 pm for a relaxing meal at:
Excelsior Hotel, 110 Coglin St (Corner of Hawker St. and Coglin St.) Brompton SA 5007(83462521)
If you would like to join us for a meal, please notify Eric: Click here for email
as we need to advise the Hotel of the numbers.

We have a permanent booking – just ask for the Inventors’ Table on arrival.

This is a good time to wind-down from a busy day and just chat (and eat!) before the main meeting.
It is only a short walk to our meeting place (see above).


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