Sean Lanphere – Superintendent, Latah Creek GC

Golf course

We chatted with Sean Lanphere, Superintendent at Latah Creek GC in Spokane WA about his experience in adding Aquritin 19 and Defend to his greens program in 2022. As a first time user of a silica-based product and a trial user of Aquaritin 19, he was quickly convinced of the benefits.

Golf course
Latah Creek Golf Course is an 18-hole par-72 championship public golf course located along beautiful meandering Latah Creek in Spokane, Washington. Latah Creek is a challenging and enjoyable test for golfers of all skill levels.
The Course features well-bunkered greens and Latah Creek which comes into play on seven holes. With wide fairways, you can launch your tee shots which makes the course fun to play. A well-marked course, mostly what you see is what you’ll get for your golf shots. With a balance of four par-3s and four par-5s, you should be able to use every club in your bag for an enjoyable round of golf.
Originally designed in 1969 by Bob E. Baldock/Robert L. Baldock. Redesigned in 2008 by Rick Phelps.

When, where and what

At the Latah Creek Golf Course in Spokane WA, we used either Aquaritin 19 or Defend every 2 weeks starting in late March 2022 through our last greens spray in mid-October. Our goal was to provide roughly 0.10 lb. N per thousand square feet every 2 weeks, although that varied based on course conditions and weather. While Aquaritin 19 was not used as a stand-alone product, it was the sole source of N for one of the two sprays per month. When we used the Defend in our subsequent monthly spray, our N source was a mix of 50/50 slow release 28-0-0 and UAN.“

What we saw

Up until the use of the Aquaritin products we hadn’t used any silica products on the golf course. In doing some research it appeared that the addition of a silica-based product could improve a broad range of agronomic challenges. Now while we can’t say for certain that it was directly due to the use of Aquaritin, we did notice a quite a few encouraging improvements as noted below:

Golf course

Green up

Once the weather was conducive to growth, we noticed a quick green up within a matter of hours on the greens.

Ball roll

We saw the ball roll on greens match or exceed past years’ performance.


No surge in growth following application.

Decrease in biotic stress

disease and insect damage were reduced as compared to previous years.

Decrease in abiotic stress

Most greens seemed to have much better wear tolerance, whether from the mowers or foot traffic. In the past, during times of high afternoon heat, the turf leaves would lose their rigidity, not so much last season.

I may be forgetting a few more things that we saw this past season, but we are very encouraged going forward using Aquaritin 19 and Defend. Not only does it work, but it is also a great value, doesn’t take up space in the shed, it’s easy to add to the tank, and best of all, we reduce our use of the 2.5-gallon jugs which end up in the dumpster.

If you’re an Aquaritin user, we’d love to hear your experiences with the product. A quick review is always helpful.

If you’re a first time user, register here for a free trial of Aquaritin 19. We’ll send you 2 bottles enough for 4 applications on 3 acres of greens.

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Our Sports Turf page is currently under construction. Click below to be put in touch with your local Aquaritin distributor.