If you're looking to get the best performance out of your spa, paying attention to your wellis hot tub filters is probably the easiest way to do it. There is nothing quite like jumping into a hot tub after a long day, only to realize the water looks a bit cloudy or smells slightly off. Most of the time, that's not a chemical issue; it's a filtration issue. These filters are basically the lungs of your hot tub, and when they get "clogged up," everything else starts to struggle.
Wellis has a bit of a reputation for high-quality engineering, and their filtration systems are no exception. They usually use those distinctive blue antimicrobial filters that look a bit different from the standard white ones you see in older tubs. There's a good reason for that design, and keeping them in tip-top shape doesn't have to be a massive chore if you know what you're doing.
Why the Blue Filter Design Actually Matters
You've probably noticed that official wellis hot tub filters are often a bright, distinct blue. While it looks cool, it's not just for aesthetics. That blue fabric is actually treated with an antimicrobial coating. In a standard white paper filter, bacteria can sometimes find a cozy home deep within the pleats. Even if the filter is catching physical debris, the bacteria can still multiply right there in the filter housing.
The antimicrobial treatment in these specific filters helps prevent that nasty biofilm from building up. It keeps the filter itself cleaner for longer, which in turn keeps your water safer. It's one of those "set it and forget it" features that makes owning a Wellis a bit easier than some of the budget brands out there. But, even with that fancy coating, you still have to put in a little bit of legwork to keep things moving.
Getting Into a Good Cleaning Routine
I know, nobody wants to spend their Saturday hosing down a filter, but it really makes a difference. If you wait until the water is green, you've waited too long. A good rule of thumb is to give your wellis hot tub filters a quick rinse once every week or two, depending on how often you're using the tub.
If it's just you and a partner soaking once a week, you can probably push it to two weeks. But if you've got kids jumping in or you're hosting backyard parties, you'll want to pull that filter out more often. All that sunscreen, body oil, and—let's be honest—dead skin cells end up right there in the pleats. A quick spray with a garden hose (don't use a pressure washer, you'll shred the fabric!) usually knocks off the big stuff and keeps the water flow high.
The Monthly Deep Clean
Rinsing is great, but it doesn't get rid of the oils. Over time, things like lotion and natural skin oils create a bit of a "film" on the filter material. Water can't pass through that film very easily, which puts a lot of strain on your pump.
About once a month, you should soak your wellis hot tub filters in a dedicated filter cleaning solution. You can buy these in spray form or as a concentrated soak. Personally, I like the soak method because it really gets into the nooks and crannies. Just let it sit overnight, rinse it thoroughly the next morning, and it'll look (and perform) almost like new.
Why You Should Keep a Spare Set
Here is a pro-tip that will save you a lot of downtime: always have two sets of filters. When it's time for that monthly deep clean, you don't want to wait twelve hours for the filter to soak and dry before you can use your hot tub.
If you have a backup set of wellis hot tub filters, you can just swap the dirty ones for the clean ones and get right back to soaking. Then, you can take your time cleaning the dirty set and let them air dry completely. Letting a filter dry out after a deep clean is actually a great way to kill off any remaining microscopic critters that survived the wash.
When Is It Time to Just Buy New Ones?
Nothing lasts forever, and that includes your filters. Even with the best cleaning routine in the world, the fibers in the filter will eventually start to break down or become permanently clogged with minerals like calcium.
Most people find that their wellis hot tub filters need a full replacement every 6 to 12 months. If you notice that your water is staying cloudy even after you've balanced the chemicals and cleaned the filter, that's a pretty big red flag. Another sign is if your control panel starts throwing "Low Flow" or "FLO" error codes. That usually means the pump is trying to push water through a "wall" of a clogged filter. Don't ignore those codes—forcing a pump to work against a dead filter is a great way to burn out a very expensive motor.
Avoiding Common Filter Mistakes
One of the biggest mistakes I see people make is trying to clean their filters in the dishwasher or the laundry machine. It sounds like a "life hack," but it's actually a terrible idea. The heat from the dishwasher can warp the plastic end caps, and the high pressure and detergent can destroy the antimicrobial fibers. Stick to the garden hose and a bucket of filter soak.
Another thing to watch out for is using household soaps. Never, ever use dish soap or laundry detergent to clean your wellis hot tub filters. Even a tiny bit of residue left on the filter will turn your hot tub into a giant bubble bath the second you turn the jets on. It is a nightmare to get that foam out of the water, so just stick to the products actually made for spas.
The Impact on Your Energy Bill
Believe it or not, your filters actually affect how much you pay the electric company each month. When your wellis hot tub filters are clean, the water flows through the system effortlessly. The pump doesn't have to work as hard, and the heater can circulate the warm water more efficiently.
When a filter is clogged, the pump has to pull more power to move the same amount of water. It's like trying to run a marathon while breathing through a straw. Keeping those filters clean isn't just about clear water; it's about making sure your equipment lasts for fifteen years instead of five.
Final Thoughts on Maintenance
At the end of the day, looking after your wellis hot tub filters is just part of the deal of owning a luxury spa. It's a small price to pay for having crystal-clear, inviting water ready whenever you need a break.
If you stay on top of the weekly rinses and the monthly soaks, you'll find that your chemical usage actually goes down, too. When the physical filtration is doing its job, the chlorine or bromine doesn't have to work nearly as hard to kill off contaminants. It all works together as a system. So, go check your filter—if it's looking a bit grey or "fuzzy," it might be time to give it some love or grab a fresh set. Your hot tub (and your skin) will definitely thank you for it.