I am thinking that Lee might have been thinking about the option to treat your pool following the Pool School - Guide for Seasonal/Temporary Pools due to the small size.
When the pool is small, you always have the option to just drain it, clean it, and start over for a pretty low cost if a problem developed. And so you can "get by" with a cheaper test kit.
The issue in this case is the desire to go with a SWG. You would not want to be draining the pool multiple times in your yard as there is a chance of the salts so built up in the ground and maybe cause damage to plants. Also having to raise the CYA back up and add the salt back in is an additional cost each time you refill.
The safest path forward is to have a good test kit, know the chemistry of the water, and have a trouble free summer.
The cheapest option might be to try to follow that temp pool guide, but this has added risks.
When the pool is small, you always have the option to just drain it, clean it, and start over for a pretty low cost if a problem developed. And so you can "get by" with a cheaper test kit.
The issue in this case is the desire to go with a SWG. You would not want to be draining the pool multiple times in your yard as there is a chance of the salts so built up in the ground and maybe cause damage to plants. Also having to raise the CYA back up and add the salt back in is an additional cost each time you refill.
The safest path forward is to have a good test kit, know the chemistry of the water, and have a trouble free summer.
The cheapest option might be to try to follow that temp pool guide, but this has added risks.