Anyone hear of this RO membrane?

[iwishtofish]

SEISSE Hidrotek Membrane

Are they any good, or should I stick with Dow?

[javajaws]

Sorry, never heard of them. You can get a Dow for like $40...not sure there's enough incentive there to experiment if you know what I mean.

Did you find any specs for it, like reject rate or anything? If it doesn't have at least a 98% reject I certainly wouldn't even think about it.

[iwishtofish]

I suppose I should be wary, since the ad doesn't state the rejection rate. They do report that the membrane has .0001 micron filtration, 75 gpd, and 1 yr life.

[gweston]

There is also a 'Valuetek' membrane on the market. It looks nearly identical to the Dow membrane save for the different name on it. It has a 96% rejection rate instead of 98%. I had to ask for the spec sheet, which by the way came in an -ancient- microsoft works format. I converted it and was able to view it.

I ordered a Dow Filmtec from one online vendor per the product pictured on the website. They shipped me the Valuetek. I complained. They let me keep the membrane and reimbursed me the $40.

I'll probably still use it..

[on the spot]

...or should I stick with Dow?

Good idea.

[Buckeye Hydro]

We recently attended the Water Quality Associations annual tradeshow down in San Antonio. There are many Asian companies trying hard to break into the US market in a bigger way. That membrane is produced by a company in communist China.

[Dyraxe]

I like Dow Filmtec too. What country is Dow manufactured in? It might be in more then one?

[Dyraxe]

found it.

The Company’s more than 5,000 products are manufactured at 188 sites in 35 countries across the globe.