Look fine to me1- Do my above calculations, assumptions and settings look correct? Any comments?
I wouldn't bother with the 2nd backwash. Channeling though not uncommon isn't all that common either.2- My Fleck manual says that the second backwash (B2) is not normally used and to set it to 0 unless instructed otherwise by a qualified technician. Yet, in some other documentation on the internet it is suggested that a second backwash of 5 minutes or so be set to avoid the risk of resin channelization. Should I set a second backwash? Comments?
Everything in the brine tank is as it should be and you should be fine although it's not a bad idea to clean your brine tank once a year. Best of luck with your new system. You will be more than happy with the Fleck70003- I have a salt/brine grid installed. the type with 4 coffee cup sized legs with about 1/4" holes in the bottom of the cups. After the brine draw there is about 2-1/2" of brine remaining in the bottom of the tank, that is at the valve check mark. (The softener empties the tank at about 1/2 to 3/4 ways into the BD cycle and then sucks air for the remainder of the cycle). The 9 minute brine fill adds about 2 inches of water to my 12" x 12" tank for a total of about 4.5" of water after the fill, the grid level is at 5 inches, so, except for the salt in the cups, the salt is above the water. Do those 4 coffee cup legs with the 1/4" holes at the bottom really work and allow for the proper creation of fully saturated brine? Will those 1/4" holes in the bottom of the legs eventually plug up?
Thanks in advance;