Pool math without the guesswork.

Saltwater vs Chlorine Pool

Cost, maintenance, feel, and which one to actually choose.

Free vs Total Chlorine

What each one measures and why the difference matters.

Bromine vs Chlorine

Which sanitizer for a pool, and which for a hot tub.

Above-Ground vs In-Ground Pool

Cost, lifespan, value, and upkeep, and which one is actually worth it.

Liquid Chlorine vs Tablets

Tablets raise cyanuric acid; liquid does not. Which to use for daily chlorination, and when.

Pool Clarifier vs Flocculant

Clarifier clumps fine particles for the filter; floc sinks them to vacuum to waste. Which clears a cloudy pool, and when.

Variable-Speed vs Single-Speed Pool Pump

Energy use, cost, noise, and payback. Why variable-speed wins for almost every pool.

Sand vs Cartridge Pool Filter

Filtration fineness, cleaning, water waste, and cost. Why cartridge wins for most residential pools, and when sand still makes sense.

Gas vs Heat Pump Pool Heater

Running cost, heating speed, cold-weather performance, and lifespan. Why a heat pump wins for most warm-climate pools, and when gas is still the right call.

Cal Hypo vs Dichlor

Chlorine strength, pH, and what each one adds to your water. Cal hypo is the better shock for most pools; dichlor is for hot tubs, new pools, and adding stabilizer.

Cal Hypo vs Liquid Chlorine

Both are unstabilized, but only cal hypo builds up calcium. Liquid chlorine is the cleaner default for regular dosing and hard water; cal hypo wins for concentrated, shelf-stable, occasional shocking.

Muriatic Acid vs Dry Acid

Both lower pool pH and total alkalinity, but muriatic adds only trace chloride while dry acid builds up sulfates. Muriatic is the cheaper default for outdoor and saltwater pools; dry acid is safer to handle for spas, indoor, and small pools.

Propane vs Natural Gas Pool Heater

The same heater, a different fuel: natural gas costs about half as much to run and never runs out, while propane installs anywhere with a tank. Buy natural gas if a line reaches the pad; choose propane when it does not.

DE vs Sand Pool Filter

A DE filter strains the finest water of any filter but needs recharging after every backwash; a sand filter is coarser but the cheapest and most hands-off. Buy sand for most pools; choose DE when you want the clearest water and will do the work.

DE vs Cartridge Pool Filter

A DE filter strains the finest water of any filter but needs recharging with powder after every backwash; a cartridge filters a bit coarser yet wastes no water and needs no powder. Buy a cartridge for most pools; choose DE when you want the clearest water and will do the work.

Solar vs Heat Pump Pool Heater

Solar heats for free but only when the sun is out; a heat pump costs something to run yet heats on demand, day or night, and holds a set temperature. Buy a heat pump for dependable heat you control; choose solar for the lowest running cost when you have the sun and roof space.