The spa filter cleaning nozzle
Clean filters deeper.
Use less water.
Retailer or spa store? Become a dealer
Trusted by spa dealers
Trade show
Meet RinWaJet at Piscine Global, Lyon
17–20 November 2026 · Eurexpo Lyon · Stand 6F93
The product
Meet RinWaJet.
Precision-machined from 304 stainless steel. The specially designed outlet concentrates the available water into one narrow, flat jet that can be directed deep between the filter pleats.
Simply unscrew the shower head and attach RinWaJet by hand to a standard 1/2-inch BSP shower hose.
Filmed demonstration
Watch a filter being cleaned in just 77 seconds.
Watch the complete cleaning process in real time. The countdown runs continuously from 1:17 to zero – no time-lapse and no shortened cleaning sequence.
A filter can look clean on the outside. Watch what happens when the jet reaches deep towards the inner filter core.
The problem
Does your filter only look clean?
A spa filter can look clean on the outside while body oils, skin residue, cosmetics, hair and other debris remain hidden deep between the pleats.
An ordinary shower head spreads the water over a wide area. Much of the water may run over the outside of the filter without reaching the dirt closest to the inner filter core.
RinWaJet directs the water exactly where it is needed.
The bucket test
10 L
Shower hose
37 sec
RinWaJet
1 min 58 sec
≈69% less water per minute
Less water also means less energy spent heating it.
Water temperature
Why water temperature matters
For the best cleaning result, use warm water whenever possible.
Warm water makes it easier to loosen body oils, cosmetics and other organic residue than cold water.
RinWaJet connects directly to a standard 1/2-inch BSP shower hose, making it convenient to clean the filter indoors with warm water.
Do not use water that is dangerously hot. Always follow the filter manufacturer's cleaning instructions.
Water pressure
Low water pressure?
RinWaJet does not increase the pressure in your water system.
Instead, it concentrates the available water into one precise jet, making better use of the water pressure you already have.
This can make filter cleaning easier in homes, cabins and other locations where an ordinary shower head produces a weak, wide spray.
One precise jet makes better use of the water you already have.
The story behind RinWaJet
Meet Arild
RinWaJet started with a very simple problem: cleaning spa filters took too long and used far too much water.
Arild Olsvik has worked with spas and swim spas since 2007. Over the years, he has cleaned thousands of cartridge filters and, at times, as many as 50 filters a week.
Like most people in the industry, he used a normal shower head or garden hose. It worked – but it was slow, used a lot of water and often struggled to reach deep between the filter pleats.
There had to be a better way.
Arild began experimenting with a much more concentrated water jet. After testing different designs, angles and openings, the idea that eventually became RinWaJet began to take shape.
The principle is remarkably simple: use less water, but make the water work harder.
Today, RinWaJet is a compact stainless-steel cleaning nozzle designed specifically to make cartridge-filter cleaning faster, more precise and more efficient.
A small tool, born from years of doing the job the hard way.
Arild Olsvik
Founder, RinWaJet · Norway
The people
Meet the team
A small Norwegian team taking RinWaJet to spa owners and retailers across Europe.
Arild Olsvik
Founder
Arild leads RinWaJet’s vision, product direction and international development. Drawing on nearly two decades of experience in the spa and swim spa industry, he works to build lasting relationships with retailers and distributors and make practical filter-cleaning solutions available to more spa owners.
Peder Lyngstad
Sales & Business Development
Peder focuses on expanding RinWaJet’s international dealer network and developing relationships with retailers and distributors. He supports new market opportunities, customer dialogue and follow-up, helping bring RinWaJet to spa owners across Europe and beyond.
Snorre Bjørtuft
Business Operations & Strategic Development
Snorre helps build the structure behind RinWaJet’s growth. He coordinates documentation, logistics and business processes, while contributing ideas and practical solutions that support efficient operations and the company’s expansion into new markets.
Partnership
Become a dealer
We are building a European network of selected spa and pool retailers – and we are looking for new partners. RinWaJet requires very little shelf space, is easy to demonstrate in-store and offers attractive dealer margins.
Apply for partnership