Since the flow rate past the typical carbon unit isn't low enough to remove chloramines, there probably is some residual remaining. It MIGHT provide some benefit, but the killing power of chloramine is substantially lower than chlorine.
Ok hmm.. I see your point. I could replace the carbon filter with another sediment filter I suppose. Or, remove it all together. Sharkbite fittings are nice that way.
Do you know if the length of run of plumbing makes a difference as far as risk goes with non chlorinated water? In other words, is a point-of-use carbon filtrater any better? These usually have several feet of tubing post-filter. More if going to the fridge for the ice maker. Maybe stuff doesn't grow as easily there?
I just wanted our readers to know that there are risks for removing your disinfectant residual. I'm curious why you're interested in removing that residual?
The lack of chlorine in the water is preferred by the longer haired residents of the house. Both scalp, and hair are less dry and brittle. The carbon filtered water just tastes better too. Honestly, it just seemed like an easy fix to get all the water in the house tasting better while also making it simple to run non-chlorinated + softened water through the RO membrane for brewing.
That looks great Joe Beer! As far as legionella goes Isn’t too low of a hot water heater temp the concern? Will 140 degree tank temp not kill it?
If you are concerned about bacteria growth in the plumbing after a carbon filter perhaps plumbing in a bypass would allow you to occasionally fill the plumbing with chlorinated water? Though at typical residual disinfection levels of municipal water that may not be high enough to sanitize plumbing with any biofilm growth in it.
Thanks! I would guess without any chlorine, anything less than boiling for a given amount of time would be a "no" on that but I'm no where near as experienced as Martin in this. Even pastuerizing temps are not effective for removing legionella
so it's one of those things you don't even want to get started. Like wild violets in your lawn.
I thought about a bypass to "flush" things monthly but then what is the metric to know this was effective? Also, depending where/how you tee bypass, there's still going to be a length of plumbing just past the filter (up to the tee) which never gets flushed. So, the more I think about it, it's probably best to just buy a couple POU under the sink filters and change the media every so often.