WTB: TDS Pen

[cmantis]

Anyone have one for sale?

Or how do I know when my RODI filters need changing without one?

 

[Affordable Aquatic]

We have them in stock:

http://www.affordableaquatic.com/index.php?main_page=product_info&cPath=22_335&products_id=1375

http://www.affordableaquatic.com/index.php?main_page=product_info&cPath=20_134&products_id=496

 

[duke62]

get a TDS meter that hooks right to the RODI

 

[cmantis]

get a TDS meter that hooks right to the RODI

Is that better, its about 3x the price?

 

[duke62]

yes its better. They are 30 bucks bro

 

[cmantis]

Is that the best/only way to know when to change filters and or how do you know which to change or does everyone just do them all at once except the membrane?

 

[isgon26]

i have both pen $20 inline $30

 

[Waleedwale1]

Is that the best/only way to know when to change filters and or how do you know which to change or does everyone just do them all at once except the membrane?

The most reliable way is def by TDS meter. Some people change the filters whenever they look dirty but by then you have probably already made some dirty water and added it to your tank. Most people say inline is more accurate though.

 

[ReefMonkey13]

i have one available. would sell to for $10.

PM me if you are interested