Hmmm, lets see here...
I can spend $25 every 6 months or so for replacement sediment and carbon canisters and take 2 minutes to remove the old and screw the new in, or....
I can spend $10 on replacement chemicals for a TWP, spend 20 minutes playing with (and also disposing of) potentially dangerous chemicals that caution the following:
<BLOCKQUOTE><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><HR> THE ACTIVE INGREDIENTS CONTAINED HEREIN ARE HARMFUL.
BOTH CHEMICALS CAUSES SEVERE BURNS TO EYES AND SKIN ON CONTACT. VAPOR
HARMFUL MAY BE FATAL IF SWALLOWED.
MAY CAUSE BLINDNESS IF SPLASHED IN EYES.
USE ONLY WITH ADEQUATE VENTILATION. <HR></BLOCKQUOTE>
I dont think so! I think I'll take the safe and easy route for $15 more.