Pros and Cons of a Saltwater System

[donaldm823]

I just shifted to SWG from Chlorox adds (was adding 1.5ppm per day or a 1.4gal jug every 2 days)(frankly, the carrying of Chlorox jugs from the supermarket was becoming a PIA for my wife!!!)(the local pool store was asking $17.00 for a 5gal chlorine bottle-12%, so Chlorox was the cheapest way to go)-bought an Autopilot Digital SC-60 online from an Internet Pool store and a 50% savings from the Autopilot website retail cost and the local dealer. Love the results. The SC-60 is one size larger than needed (my pool is 30,000 gal)-but happy with larger cell and I only run my pump 10hr/day.. Bottom line, I bought the SWG for convenience not money savings, as the initial cost may not save you money over the life of the system

The water is much clearer (think it is due to a more consistent chlorine level)(sparkles brightly in the full sun, and has a tint of "aquamarine" color in the afternoon sun from the salt add, no eye stinging, CC is always under 0.10ppm level, so, shocking no longer, and best of all, it has allowed me to remove my Nature2 system which saves me an additional $100.00 per season for the cartridge.).(The Nature 2 system was causing some pool wall discoloration).

No one can tell I have salt in the pool!!! Of course, I can-and periodically I taste a slight salt taste for the first 5 min of pool entry-then the taste goes more to a sweet taste. I do have to add approx 1 qt of acid every 3-4 days if there is a lot pool water surface agitation, but if I cause the pool discharge to go to the main drain (called solar recirc by the pool builder), I have found the water agitation is none and my pH is relatively constant (can go almost 1 week without an acid add. My pool is 2 years old-used TRI the first year and the BBB (chlorox) the second year. I would never shift back

Of note-Bleachcalc and the SWG manual said I needed 700lb of salt added-but I only had to add 300lb to get to the 3000ppm level. So measure salt content before adding. Based on forum comments, the initial pool salt level was approx 1500ppm and was from chlorox adds as well as the first year TRI, DI, and CaHypo adds-all of which end up as salts once the chlorine is used up. In the month of usage, I have not had to add any additional salt, and the autopilot has kept up with the chlorine demand easily. Now that is has gotten cooler in PA (80F days and 60F nights) and my using a solar cover at night-my typical setting is 40% and the lowest of 3 power level settinsg

As for the Autopilot-very happy with the purchase-has all the bells and whistles (even tells you when and how much salt to add). The install was done by me and very easy since they give you a cell manifold that gets glued into your PVC discharge line. The hardest part was the wiring and conduit install-due to the close quarter confines of my pool timer vs where I hung the SWG control box-still only a 1 hr job for wiring and a 2hr job for cutting PVC and gluing (most of the 2 hr was waiting for the glue cure).