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.
1 Total cost, labor and materials, for replacing an in-ground swimming pool liner is typically $2,000-$5,000. 2  A vinyl liner for an above ground pool can cost $150-$600, depending on the size and style of the swimming pool, plus any special colors, patterns or textures in the liner. For example, a 20' Round and 4' High 20 gauge Vinyl Liner with a pebble pattern on the bottom costs about $265 from Inyo Pools in Florida. 2  Installation labor to replace an above ground pool liner can cost $200-$800 or more, depending on local rates and the size and shape of the pool.