Noticed that a few members are buying their water from fish shops.
Bear in mind that the Aquatic R.O. systems do not always have a DI stage, so the water may not be zero tds.
Bearing in mind that even a well maintained RO system can vary between 5 and 15 tds before the DI, and higher if the water pressure drops, or the filters need changing it is worth testing it for yourself before use, or using a DI filter before you use it.
Have seen these small DI filters that may not last long but can be refilled, and are nice and small to fit on a trolley somewhere. (In a van it is easier to use a bigger DI pressure vessel).
http://www.ro-man.com/shop/product_info.php?cPath=33&products_id=110
Dave
Bear in mind that the Aquatic R.O. systems do not always have a DI stage, so the water may not be zero tds.
Bearing in mind that even a well maintained RO system can vary between 5 and 15 tds before the DI, and higher if the water pressure drops, or the filters need changing it is worth testing it for yourself before use, or using a DI filter before you use it.
Have seen these small DI filters that may not last long but can be refilled, and are nice and small to fit on a trolley somewhere. (In a van it is easier to use a bigger DI pressure vessel).
http://www.ro-man.com/shop/product_info.php?cPath=33&products_id=110
Dave