Salt electrolysis:
- separate electrolysis cell that requires electricity
- electrodes usually need to be replaced after two years
- salt content in the water must be monitored with an additional/separate sensor
- buy salt and dissolve it in the water
- stainless steel pool (even V4S) is unnecessary. The maintenance effort is not feasible for private use
Some say it’s better for the skin because allegedly no chlorine. But that is not true. The chlorine amount in the water is the same.
Liquid chlorine inorganic:
- dosing pump
- buy chlorine canister
- stainless steel pool (V4A or V4S) easily possible
For both variants
- same amount of chlorine in the water
- you need a pH dosing system to control the pH value.
The chlorine amount is controlled in both cases via the redox value. The value indicates via conductivity how fast disinfection can take place. Since the water continuously flows through the measuring cell (when the pump is running), dosing takes place immediately as soon as the redox value falls below the intervention limit.
It works exactly the same with pH dosing.
Since you are not planning an overflow pool, you do not need a compensation tank. Thus, the space requirement is limited to filter, pump, control unit, dosing technology, and the canisters. The heat pump is located outside. Three cubic meters are more than enough here. Thus, there is enough space to access everything easily.
You cannot oversize the filtration system. Better to have reserves under extreme conditions. Better to circulate slowly and longer than short and a lot. With the adjustable pump, you can e.g. increase performance during a pool party.
- filter tank 600mm to 800mm
- pump Speck Badu Delta-MK Eco VS. Adjustable, low power consumption, efficient, and no plain bearing but magnetic coupling. Mechanical seal is always the weak part. This is eliminated.
- rod valve (Besgo) for automatic backwash.
- pool robot Dolphin or Zodiac with wall cleaning
Counter-current system best with propeller. But they are expensive.
Pool control:
- all-round package Bayrol Poolmanager. Everything is integrated here. Dosing technology, measuring cell with electrodes, control, light control, counter-current system, etc.
- Procon-ip allows you to do more yourself. Not so fancy
Stainless steel pool manufacturer e.g. Polytherm. They have their own control system. Extremely reliable but not quite as "modern". They can supply you the complete package. You need to specify pump requirements and such.
Maintenance work:
- change canisters as needed. Fill level is calculated from the dosed amount
- replace hoses in dosing pumps every year. Pool off, cover off, hoses off, new hose in... done both pumps in 10 minutes
- occasionally put flocculant in the skimmer. Flocculation system not necessary.
- calibrate electrodes once a year. Remove electrode from measuring cell, place in calibration liquid and select calibration in control unit.
- cleaning is done 95% by the robot
- cover absolutely necessary. Prevents cooling down, reduces chlorine usage. Sunlight destroys chlorine. Less dirt and biomass entry.
We overwinter the pool actively but unheated. That means circulation continues. When it gets cold, 24 hours. No lowering of water level or anything.
If you have a roof area nearby, fill it with photovoltaics. Thus, electricity for the heat pump. It’s not so cold where you are. If you want to start the swimming season early or extend it late into autumn, you need a stronger heat pump.
You will still need a net and brush sometimes.
Stainless steel is great. Unique water color. Dirt is easy to remove. In the worst case 00 steel wool...
If I forgot something or you have any questions, just let me know.