Christy's 180 build

[christyf5]

So today I thought I'd check out my RODI TDS to see if everything was ok, its been awhile and I'm always amazed that its still only like 2 even though I think I haven't replaced the RO filter since about 2006/2007. Sure enough its still 2. Thought for fun I'd check my waterchange bucket that is currently filling with fresh water. Interesting, TDS is 35. Hmm, check my auto-topoff reservoir, TDS is 40. Nice. I wonder if thats why my tank looks like ass lately? Guess I'll have to clean both out thoroughly.

[PoonTang]

Christy, you should be getting about 2 after your membrane and 0 after your DI. Do you have a online dual tester? Let me know and I can bring mine up next time and we'll check it out.

[christyf5]

Originally Posted by PoonTang

Christy, you should be getting about 2 after your membrane and 0 after your DI. Do you have a online dual tester? Let me know and I can bring mine up next time and we'll check it out.

Its never been zero but that doesn't matter to me. 2 is close enough. I've never tested it after my membrane, just where it comes out after the DI.

[PoonTang]

Also watch your temperature as it makes a huge difference to the TDS if you get it over about 76 deg. I know you use a fawcett to supply the filter like I do and i have seen it if you have it too high. I guess the heat must expand the pores in the membrane.

[christyf5]

Originally Posted by PoonTang

Also watch your temperature as it makes a huge difference to the TDS if you get it over about 76 deg. I know you use a fawcett to supply the filter like I do and i have seen it if you have it too high. I guess the heat must expand the pores in the membrane.

Interesting. I'll try to keep it a bit cooler. I did notice it was quite warm today but I think that was because I was running the washing machine at the same time (hogging all the cold water).