# Pro Mower Buildup? **URL:** \ **Category:** Support & Solutions\ **Created:** [December 9, 2025, 6:39pm UTC](https://forum.yarbo.com/t/pro-mower-buildup/4666 "2025-12-09T18:39:50Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Eff.A](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.yarbo.com/eff.a/32/1493_2.png) [@Eff.A](https://forum.yarbo.com/u/Eff.A)\ **Post date:** [December 9, 2025, 6:39pm UTC](https://forum.yarbo.com/t/pro-mower-buildup/4666/1 "2025-12-09T18:39:50Z")
After about a week of mowing I have noticed that there is a buildup of gras under the deck. So much, that the blades will eventually start rubbing against it and the app reports errors. It’s easy enough to scrape off. I did put the graphene spray on the deck, but it’s still sticking. ---
**Author:** ![ken.w.gregory](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.yarbo.com/ken.w.gregory/32/922_2.png) [@ken.w.gregory](https://forum.yarbo.com/u/ken.w.gregory)\ **Post date:** [December 9, 2025, 6:42pm UTC](https://forum.yarbo.com/t/pro-mower-buildup/4666/2 "2025-12-09T18:42:42Z")
I think some buildup is normal. I know my M1 will accumulate debris. I give my M1 a bath every now and then. Let me correct that, I dont submerge it in water. A gentle rinse off with the hose is what I do. ---
**Author:** ![rgloverii](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.yarbo.com/rgloverii/32/956_2.png) [@rgloverii](https://forum.yarbo.com/u/rgloverii)\ **Post date:** [December 9, 2025, 7:21pm UTC](https://forum.yarbo.com/t/pro-mower-buildup/4666/3 "2025-12-09T19:21:02Z")
Wow.. Lawn mowing. A distant memory with all this snow on the ground right now… ---
**Author:** ![bryan.wheeler](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.yarbo.com/bryan.wheeler/32/215_2.png) [@bryan.wheeler](https://forum.yarbo.com/u/bryan.wheeler)\ **Post date:** [December 9, 2025, 7:51pm UTC](https://forum.yarbo.com/t/pro-mower-buildup/4666/4 "2025-12-09T19:51:57Z")
Just lower the blades down and hose it off. Some build up is expected. The graphene coating is oily and can leave a residue if not fully wiped off. Plus I don’t think it bonds to well to the shiny plastic surface or whatever coating they might do at the factory. I think it will build up less after that all wears a bit. I didn’t coat mine and there’s a little but not a lot. ---
**Author:** ![rcguymike](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.yarbo.com/rcguymike/32/4166_2.png) [@rcguymike](https://forum.yarbo.com/u/rcguymike)\ **Post date:** [December 10, 2025, 4:17am UTC](https://forum.yarbo.com/t/pro-mower-buildup/4666/5 "2025-12-10T04:17:21Z")
Also have to mention: try not mowing if the grass is wet ---
**Author:** ![Yarbo-Forum](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.yarbo.com/yarbo-forum/32/126_2.png) [@Yarbo-Forum](https://forum.yarbo.com/u/Yarbo-Forum)\ **Post date:** [December 10, 2025, 6:10am UTC](https://forum.yarbo.com/t/pro-mower-buildup/4666/6 "2025-12-10T06:10:17Z")
Hi there, some grass buildup under the deck is normal, and regular cleaning will help keep your Mower Pro performing at its best. As @rcguymike suggested, avoiding mowing when the grass is wet can also help reduce this issue. ---
**Author:** ![docmarkc](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.yarbo.com/docmarkc/32/295_2.png) [@docmarkc](https://forum.yarbo.com/u/docmarkc)\ **Post date:** [June 18, 2026, 2:20am UTC](https://forum.yarbo.com/t/pro-mower-buildup/4666/7 "2026-06-18T02:20:50Z")
I literally live in the desert and we get somewhere around 9 inches of rain a year. I am mowing a pasture of dried ryegrass that is about 6 in Long and by the end of the mowing of the pasture, my blades look like plastic wings from a model airplane with no sign of a blade Edge. I can peel the material off of the blades and it looks like a buildup of years of latex paint. It’s actually kind of cool but I don’t see it doing any damage and I can remove it. The only issue I have is that the blades don’t really cut once the buildup has occurred because the edge is coated. I just have to clean it several times during the job. That’s better than me having to do the job myself ---
**Author:** ![wally](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.yarbo.com/wally/32/1399_2.png) [@wally](https://forum.yarbo.com/u/wally)\ **Post date:** [June 18, 2026, 2:50pm UTC](https://forum.yarbo.com/t/pro-mower-buildup/4666/8 "2026-06-18T14:50:44Z")
I don’t have any issues with material buildup under the deck. I did wire brush the pro metal blades before the start of this season. They had about the same amount of buildup as my Toro self propelled did after each season. I just checked the deck this morning. All is clean and tight, no buildup to speak of. I don’t mow until the dew is off the grass though. My lawn is fescue, mowed twice per week.