Skimmers & other filtration
OK, it is coming up to about 6 months for my sediment and carbon block filter. So in theory the filters should be replaced every 6 months. However, I was running the numbers...
I use 5g of RO/DI per week, thus about 22.5g per month. In addition, I use 20g worth of RO/DI per month for NW. Thus...