what is watermaker preservative?

[Hoghead]

I need to buy the preservative for my watermaker and my usual suppliers are out of stock of the cartridge type kits

What is the chemical?
Sodium metabisulphide??

[KnuckleDragger]

It's sodium metabisulfite. Can commonly be found in home brew/wine making stores for WAY cheaper than purchasing from watermaker suppliers.

[senormechanico]

Spectra claims theirs is not (in a roundabout way).
Paging Doctor Tellie...

[Tellie]

Originally Posted by senormechanico

Spectra claims theirs is not (in a roundabout way).
Paging Doctor Tellie...

You are correct. Spectras powdered SC-1 storage solution is a proprietary chemical designed specifically for thier systems. It would be a very expensive mistake to use sodium metabisulfate. Buy it from us, it's a lot cheaper than repairs.

Halden Marine Services | Marine Watermakers, Solar Panels, Wind Generators

[KnuckleDragger]

Did he say he had a Spectra watermaker?

[SV THIRD DAY]

Originally Posted by KnuckleDragger

Did he say he had a Spectra watermaker?

No he didn't But its so damn important to note that MetaBi will damage the Clarkpump that it is worth saying in every "what is pickling reagent thread". Otherwise people with a Spectra will damage their unit from chat room advice that is incomplete. I see this type of thing happen all the time and it costs cruisers money.

[Hoghead]

Tellie
No way to buy on-line from your website so not so easy for those of us not in the USA

[Hoghead]

I see you sell MetaBi as a pickling agent, so is the use dependent on the type of pump?

Originally Posted by SV THIRD DAY

No he didn't But its so damn important to note that MetaBi will damage the Clarkpump that it is worth saying in every "what is pickling reagent thread". Otherwise people with a Spectra will damage their unit from chat room advice that is incomplete. I see this type of thing happen all the time and it costs cruisers money.

[Hoghead]

The Parker version seems to contain Sodium Metabi

Village Preservative Chemical - Village Marine Tec | Fisheries Supply

[SV THIRD DAY]

Originally Posted by Hoghead

I see you sell MetaBi as a pickling agent, so is the use dependent on the type of pump?

Yes.
Pump, Seals, and internal parts.

[senormechanico]

Originally Posted by KnuckleDragger

Did he say he had a Spectra watermaker?

Not sure if you mean the PO or me.
I have a Spectra and love it.

[Badsanta]

Just a suggestion. If you store your preserved watermaker in freezing temperatures make sure your solution can prevent freeze damage. The pink antifreeze for campers potable water lines works well. My spectra it was the recommend type for long term storage.

[SV THIRD DAY]

Originally Posted by Badsanta

Just a suggestion. If you store your preserved watermaker in freezing temperatures make sure your solution can prevent freeze damage. The pink antifreeze for campers potable water lines works well. My spectra it was the recommend type for long term storage.

DANGER.....WARNING......CAUTION

Do not mix the pink antifreeze in too low a concentration to save a few bucks because in low concentrations the pink antifreeze is actually Food for certain bacteria and you will come back to a rank smelly water maker that the only real way to get the smell and taste out is to change the membranes....$$$$$.....ouch!

As much as I detest the stock answer of following the manufacturer recommendation for picking....if you go it alone based on incomplete internet advice know your risks.

[Badsanta]

Yes don't use any at to low concentration. But many dont think about freezing. Yes follow directions.