The high charge current produces a surface color, which corresponds to a state of charge of 70â80%, although the average SOC is just 45%. The high discharge current also forms a large gradient of the state of charge in the graphite anode, which is reflected in a black color. Due to this color we presume that the anode surface has a very low SOC.
The ongoing costs of a pool (electricity, maintenance, and repairs) can cost owners $3,000-$5,000 or more per year. In an effort to save money, many homeowners decide to tackle pool cleaning on their own.Using the monthly pool costs outlined above, that can work out to yearly savings of more than $1,000. Extremely dirty pools (so murky that you canât see the bottom on the deep end) might require a drain and clean service that runs $500 to $600 or more. 2  Pool acid washingârequired for the most stubborn pool stainsâcosts $200 to $300 in addition to the cost of a drain and clean.
For the purpose of this discussion, we will look at the costs associated with the installation of both kinds of modern swimming pools. According to P.K. Data the average cost of a 19' diameter above ground swimming pool is $6,243; while the average cost of a 32'x16' inground swimming pool is $21,919. Chemicals-between the chlorine, pH testing strips, and other materials, the average pool owner spends roughly $80 per month for above ground swimming pools and $95 per month for inground swimming pools.