Davis 4400 Scrubbis Underwater Hull Cleaning Kit

This product worked great to remove the lake-scum from the bottom of my 21 foot wakeboard boat. The floatation of the head provides good adhesion of the cleaning head to the bottom of the boat. The curved section of the pole helps get much farther under the boat than just a straight pole. Prior to using this device, I was using a brush on a straight pole and, while the brush cleaned slightly better, the brush and straight pole required me to get in the water to clean the very bottom of the boat - with this product I was able to clean the entire bottom of the boat while staying dry! I would recommend this product to those who want to remove light scum and algae from their boat, but not for heavy duty cleaning of saltwater vessels.

I purchased this for my 38ft sailboat. I meticulously maintain and clean it regularly since its kept in the water most of the year. I sail at least once a week so my hull doesn't get heavy growth but it removes the soft growth and sum lines and grass like growth wonderfully. With regular use after 6 months my diver was doing a zinc replacement check and commented how amazingly clean my hull was compared to the other sailboats on my dock. It definitely is a worthwhile tool to have to maintain the hulls condition between yearly haul outs!If I had a half a dozen I could sell them to the other sailors in my club.A great affordable product that works and continuously saves you money on maintenance!!

Using this on a 36' trawler - tried it from the dink, but challenged by the pushing away from the boat with the go-under swing. Getting the angle right is key. What I found is, doing it from an inner tube works great! About the right height, plenty of reach, just hold onto a line to stay in place. Once I got the hang of it (sit on a side with the rest up behind you), seemed to go pretty quick although I wouldn't be a fan in 60 degree water. The unit itself seems to be good quality - obviously don't stress it with awkward angles - it is just tube aluminum. I'm removing just grass/slime - would expect the foam would tear up if it is barnacles. The blade works well - likely fine with hard bottom paint but not ablative.

The sponge attachment has nothing keeping it attached to the pole. You just push the pole into a hole. Maybe this work’s somewhere but following the directions attempts to use this from the boat or from a dinghy only resulted in the sponge coming detached and floating underthe hull. Had to use an oar from a dinghy to find it and guide it out from under. Disappointed from a company from Davis. And they will not let you return it even though the ads says it’s returnable. Amazon was zero help and their response to a difficult issue was to hang up on me twice. So equally disappointing.ALERT: after spending 1.5 hours trying to get approval to return this item, sending it USOS 5 day ground, the cost of shipping is MORE than what I paid for it including tax so sending it back isn’t an option.

My Davis 4400 Scrubbis arrived yesterday. Thirty minutes later I was at the lake and my boat. Assembly was simple, although I did have to wrestle a bit with the PVC pin that locks the scrubber on the pole. No big deal. I put it to work immediately on my 34 foot sailboat and just started to laugh. It did an amazing job. The buoyancy and simple design of the scrubber does most of the work. Two times around the boat and the bottom was clean. If you have a sailboat, you will still need to dive on the keel and rudder, but still. This thing is a must have for any performance driven sailor. I can't recommend it enough.

It exceeded my expectations. It seems easy to design yourself, yet, it is not. Buoyancy, the material, the length extension, the curve, all perfect and well thought for the bottom cleaning job. I completed bottom cleaning at the dock of a 32 feet sailboat in 15 minutes. Only area didn't reach is the keel. I will try next time.Great job.

Expected more but got less.

this scrubber does a great job on my 27’ sailboat hull - no need to call a dive / cleaning service !