New 2023 Montauk 190 store on a lift without cover.

[FloatingAround]

Getting these yellow spots on the deck on multiple places. Vessel is on lift no cover yet, and located on Boca Raton near of airplanes path. Unsure what is causing it, but most important how to clean this yellow spot. Really appreciate any advice.

I clean the vessel as much as possible after every trip. I have use the shurhold brushes and their soap but this spots wont come out, and keeps getting more as time passes.

[CaptBrett]

Hi Capt, this could be from a fuel dump.  Get yourself some Knights Marine Spraynine https://www.spraynine.com/products/degreasers/marine-spray-nine-heavy-duty-cleaner-32-oz/

Dont dilute.  Spray a little on a terry cloth rag and see if it will come clean.  Apply some wax to these spots and wait to see if the stains come back in the same area.  If they come back in the same spot, there is some other issue, Let's see if they appear again but if in different locations.  

[FloatingAround]

Sounds good, I will order the recommend product and give a it try. I will keep you inform in case someone else runs into the same problem. So far it looks to be pollen from trees. I don’t have any trees over the lift but most likely wind is bring some pollen.

[CaptBrett]

Hi Capt, 

Well i guess it could be but that seems odd to me.  Keep me posted.  

[Bigwylie]

I,m up in Toronto Canada and we see something similar to this throughout the boating season. It looks like it could be tree seedlings with small sticky sap. It creates a similar yellowing. Best solution I have found is SprayNine. Spray on, wait 5 min( time is important here). It will create an even larger yellow area as the sap disolves. Spray a bit more on the area and use a bristle scrubber to scour. Rinse. Post your solution and result?  If it is fuel related then any clorox powder cleanser should work

[FloatingAround]

Thanks a lot Bigwylie, for your reply. I was able to remove some of it with Shurhold SMC. But i will follow up with recommendations