It could be a problem. Let's get hypothetical for a sec. The following is my opinion, and not necessarily representative of others on the forum.
I don't know what kind of filter you have....if you have sand filter and vinyl liner, it will be easier for you to use a trichlor method, described below.
You order the TF-100. You read every article in pool school, 2 or 3 times.
You start out with algae-free water, that is balanced and FC is holding overnight. You will have low CYA, preferably 30-40. (If this is not the current situation, you would need to get there before you could start using this method. It will probably take more than 2 days to get there, so keep that in mind.)
You have or will get an inline chlorinator that uses trichlor tablets. Understand that Trichlor raises CYA and Lowers PH and TA.
Your pump will run on a timer. You have an autofill, or someone who checks the water levels for you. Will you use a safety cover, or solar blanket? Both reduce evaporation and FC loss from sunlight.
You start with a CYA of 30-40, the trichlor tablets will raise the CYA slowly over the season. Each week when you arrive, you will test your water and make any necessary adjustments to PH using Borax, then Chlorine (using bleach), then TA, using Baking soda.
Each weekend or as necessary to keep the CYA below 50, you will backwash the sand filter which will lower the water, requiring water replacement. This routine backwashing will help keep the CYA level in check. You will monitor your CYA level monthly, adjusting FC levels as necessary (the higher the CYA level, the higher the FC level required to prevent algae).
If the chlorinator isn't producing enough FC you may arrive to a cloudy or green pool, and you'll spend the weekend shocking. It may take a few trial and errors to figure out what level you will need to set the inline chlorinator at, to produce enough FC daily. To avoid problems, I would start at the high end of the chlorinator's options, and work you're way down till you figure out the proper setting to obtain the daily needed FC levels. If the CYA level is getting too high, and the amount of FC the chlorinator is releasing can't keep up, you'll need to drain out some water and replace with fresh to lower the CYA level. Starting out at the high end could be problematic for PH/TA though.
On the weekends, you can turn off the chlorinator and just use bleach while you are there. You can tweak any necessary levels while there...
With your TF100, you will monitor your PH/TA levels, using borax and baking soda to keep the PH and TA in line. Because the trichlor is acidic, you need to keep the PH and TA
up at the start of the week before you leave, so it doesn't get too low while you are gone.
You will probably need to increase these levels when you arrive to your vacation home. Ideally, before you leave for your main home, your PH is 7.8 and your TA is 100-120. (Running with a higher TA will help keep the PH from getting too low.)
If you know in advance that you will miss a weekend, shock the pool with bleach before you leave, as an added precaution.
It's not perfect, but it could possibly work. But you have to be diligent with monitoring the levels, and making sure they are as ideal as they can be at the outset.
There are lot of pool owners that use the trichlor method and have moderate success. They probably shock more than the average BBB user, but whatever works, right?
If you have visible algae now, your pool guy is not doing his job, so why pay him your hard earned money?
There are articles in pool school that instruct you on the basics of BBB and how to defeat algae. You should dedicate more than a weekend just in case, if you want to tackle clearing it up yourself.
Trichlor is not what we normally recommend, but you CAN make it work if you understand what they do to the pool and how to rectify it. It's more expensive to go this route, but it can work for your situation.
The alternative is a liquidator (not without issues) and ideally an SWG.
The truth is there is NO system for pool care that takes care of itself. But an SWG is certainly more ideal that trichlor.
