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When clay soils become compacted, they form a dense layer or “cap.” These clay caps hinder rainwater from draining properly, leading to waterlogged conditions, especially during heavy rainfall.
Ideal for areas where traditional ploughing or manual digging is impractical, such as gardens or smaller plots.
When applied, the large calcium ions in Liquid Gypsum attract clay particles, forming aggregates known as “flocs.” These flocs enhance:
Liquid Gypsum was developed by Dr. Russell Sharp in 2016 and remains formulated in-house to Eutrema’s high standards.
Liquid Gypsum is particularly effective for:
All soils with clay content can benefit from Liquid Gypsum’s properties.
Designed for year-round use, our products keep your lawn nourished and thriving, even in winter.
Product Amount | Coverage | Method |
|---|---|---|
5 Litre Polycan | Suitable for a 75–125 m² garden. | Mix 250 mL of Liquid Gypsum in a 5L watering can to treat 6 m².
Can be applied with either watering can or sprayer.
Apply once or twice per year to maintain the effect. |
20 Litre Polycan | Covers a 500 m² area. | |
Crop Stage | Application | Method |
|---|---|---|
Pre-Planting | 5-20 L/ha, depending on soil condition. | Adjust water to control how deeply the solution penetrates into the topsoil. |
In Crop | 5L/ha | Mix 5L of Liquid Gypsum in 200L of water for spraying.
Rinse leaves with fresh water to remove residue. |
Important Note: Avoid application during extreme heat or midday sun in summer.
Compatibility and Mixing
For further guidance, consult the safety data sheet (SDS).
I'm extremely pleased to report that following the application of your liquid gypsum product our new build quagmire, sorry I mean lawn, this has resolved our waterlogging with the lawn remaining firm and draining rainwater.
Did my garden 2 months ago its not coping with all this rain at the moment will have to wait and see how quickly it drains when the rain stops, currently flooded
- Update it stopped raining overnight and wow the flooding has gone would normally have taken weeks to drain away so very impressed used both products all of it over a few weeks will do it again next year.
My Dad is thrilled with the rapid results after trying everything else to fix his poor quality 'new build house' lawn. He now has a green lawn that isn't waterlogged and his neighbours are impressed too.
I bought some of this to mitigate my heavily saturated clay lawn in my new build house. I have to say I'm very impressed with the results and there has been no waterlogging despite some of the weather we've had.
I highly recommend Eutrema. I have ordered both Liquid Gypsum and Clay Drainer. Products made a noticeable improvement in our heavy clay lawn that was regularly waterlogged. I've also purchased a nitrogen fertiliser with fantastic results. Russ is always every helpful with any questions you may have.
I bought the Liquid Gypsum and i have been surprised at how quickly it does work. My garden has about a metre depth of clay and when it rained my lawn looked like a 3d map of the Lake District. Drainage was pretty much non existent, now however there are only a few areas where the water is slow to drain. I'm going to keep treating until it drains better. I'd recommend this product.
I have used both the clay drainer and liquid gypsum this summer and found the drainage during our recent deluge in Oxfordshire was greatly improved.
Got my order a couple of months back and it's made such a difference to our garden thanks so much guys
I applied the liquid gypsum about 5 weeks ago, I've noticed that I don't get anywhere near as much rain running off my lawn and pooling against my house which has got much better as the weeks have gone on.
I used this on heavy clay garden that used to flood a lot, it has certainly helped.
Put mine on two weeks ago and its definitely working.
I have used this 3 times so far this year, after having a bog all winter. Can definitely say it's making a difference.
spencer.de.rothschild (verified owner) –
Helped improve the drainage on the lawn. Our soil is very heavy clay and so drainage is poor in winter after torrential rain.
Grass seemed to be a luscious green in the weeks after application too (compared to the small bit we left untreated)!
Johnathan Harpham (verified owner) –
We use both this and clay drainer commercially in conjunction with our geo-injector to alleviate soil density issues on new build sites and around trees, and all I can say is it works.
In fact, we get on that well with it, we even recommend it to homeowners so they can do any follow-ups if needed.
We’ve even given a can to a local rugby club to reduce their need for verti-draining and keep the pitches in play and in better condition for longer during the season.
Mr Ian Humphreys –
I have been struggling with a particular lawn which suffers from clay underneath it and bought this product having discussed it with Russell at some length before doing so. My initial view after one application [using the clay breaker first] is that it seems to be doing a good job. Of course, we had a very dry spring which would have helped dry out the ground, but we have had a decent amount of rain in the last 2-3 wks and the drainage does seem to be better. The real test will be in the Autumn and Winter. Fingers crossed it does work, and I will be applying the gypsum again in mid-September.
Androniki Ram (verified owner) –
I’ve used Liquid Gypsum at the time I was rotovating through my clay soiled garden before sowing my new grass seed and the difference it made was impressive. I tried to rotovate before I added the liquid gypsum and it was difficult. I’ve since used liquid gypsum now that my grass is 2 months old and again found a positive difference at the time I’m watering the garden as it drains well. I’m so glad I found this. I also have the clay drainer which I’m looking forward to using now that my grass is more established. I have a lovely lush green garden now.
Kari Ray –
My use of this coincided with unusually dry spells of weather, but in spite of that I’m certain that it’s contributed strongly to dispersing surfacewater from our increasingly waterlogged, badly-laid 6 year old new-build garden. Even after heavy rain, there’s no water evident in the turf and topsoil, so I remain hopeful that drainage through the compacted clay subsoil improved measurably. I also used the clay drainer but found it hard to disperse a litre of water/drainer over such a big area evenly. The response from Matt to emailed queries was lightning fast and very helpful, so overall, a big thumbs up
Sarah (verified owner) –
Ive found them to be a great company that offers products that no where else does I looked all over. We get a lot of rain in the UK and our grass was suffering as we have dense clay soil which now drains away after using the gypsum and clay drainer! They’re fantastic you can tell they’ve really invested in their products they’re not harmful to pets or children and even better as it’s liquid it soaks through the grass to work immediately and nothing is left sitting on the top like with a powder/granules. If you have any questions they’re very happy to go through things to confirm which product will work best to help resolve your problem. I’ve recommended them to my neighbour and would to anyone definitely give it a go