I suppose cleaning and alternating cleaning your sponge under the tap is no different to replacing the sponge I'd still do a final rinse with prime though98% of the time i clean my AC media in tank water but sometimes i will take the square sponge and really give it a heavy cleaning under the tap. But all my tanks have more than 1 filter so that is why my cycle isn't ever affected. Don't clean the ceramic or biological media under the tap always rinse that in the old tank water in a bucket.
The only reason I sometimes do the sponge is cause it gets very mucked up so the pressure of the tap cleans it out better than just wringing it out. Personal preference I guess
Yes, again for those who missed it.I'm going to be completely honest here. For many years I've rinsed my filter media with just tap water and I never had any issues. I am also of the mind that using tapwater will not wipe out your bacteria colonies and personal experiences seems to support this, for me at least. I also find it interesting to note that Swiss Tropicals, who supplies Poret foam for mattenfilters and the like, also says in his FAQ about cleaning that it doesn't matter about using de-chlor water. Snippet from his website: "It does not matter if you use cold or chlorine-treated water! The often repeated notion that this process would kill all the filter organisms is complete nonsense, because the residual chlorine concentration in drinking water is way too low to kill them." FAQ - SWISSTROPICALS
That said I think that this idea about needing to clean your filter media with old tank water is probably going to persist and honestly if you don't know or trust what is in your water then it's probably the way to go.
Chlorine/chloramine costs money, so water companies don't add more than needed to bring the bacteria in the water to a safe level. They most certainly do not add so much that your tap water can be used as a disinfectant.Although I agree with @jdhef I have new read the article in its entirety that @GlennO attached and now wonder if it's ok to rinse in tap water, being sort of old school what's sticking in my mind is different companies and your wells produce water some with high chemicals in like chlorine/chloramine so where it's ok for some it may not be for others, so until I read a scientific report on it I think I'll stick with tank water, it will be interesting to see hoe others clean the filters