Is a whole-house water filter worth installing?

It's not a one-size-fits-all thing - depends entirely on your water quality and what problems you're actually dealing with. If your tap water tastes off, you've got sediment, or testing shows contaminants, then yeah it's worth the investment; otherwise you're probably throwing money at something you don't need.

Whole-house filters really shine if you're dealing with specific issues like hard water, rust stains, or chlorine smell that affects everything including your plants. I noticed my monstera and pothos were getting brown leaf tips until I realized our tap water had way too much chlorine and minerals, so I installed one and honestly the difference was noticeable within a few weeks. If your water tests fine and tastes okay, you're probably fine without it, but if you're already noticing problems or have older pipes, it's a solid investment that pays for itself through better appliance lifespan and less bottled water buying.