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Direct access to the hull in AR250

Brunnen-G

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Yamaha
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2021
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AR
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Does anybody know access points to the hull from inside the boat? I mean directly to the bottom of the hull without any layers or enforcement on top of it.
 

drewkaree

Jetboaters Fleet Admiral
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Does anybody know access points to the hull from inside the boat? I mean directly to the bottom of the hull without any layers or enforcement on top of it.
Cupholders in the bow - remove them and you have access at that point, although very limited

Inside either helm storage area, although there's some carpeting, you can see the backside of the fiberglass

Through the cleanout tray or the inspection hatch on the cleanout tray - you can access the stern from that area.

Not sure if that's what you're referring to, or if you're looking for something specific. Question is open to a lot of interpretation without knowing what you're looking for, more specifically, or what you're trying to do.
 

Brunnen-G

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Cupholders in the bow - remove them and you have access at that point, although very limited

Inside either helm storage area, although there's some carpeting, you can see the backside of the fiberglass

Through the cleanout tray or the inspection hatch on the cleanout tray - you can access the stern from that area.

Not sure if that's what you're referring to, or if you're looking for something specific. Question is open to a lot of interpretation without knowing what you're looking for, more specifically, or what you're trying to do.
Thank you for the tips. I'm trying to install ultrasonic transducers (like this one: Hull Shield HS50 Ultrasonic Antifouling System - Digital Bottom Paint - Hull Shield ), but it works well only if transducer is attached directly to the bottom of the fiberglass hull without any layers in between.
 

drewkaree

Jetboaters Fleet Admiral
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Location
West Allis & Fremont, WI
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Yamaha
Year
2019
Boat Model
AR
Boat Length
21
Thank you for the tips. I'm trying to install ultrasonic transducers (like this one: Hull Shield HS50 Ultrasonic Antifouling System - Digital Bottom Paint - Hull Shield ), but it works well only if transducer is attached directly to the bottom of the fiberglass hull without any layers in between.
That's great info - do those have to be located below the waterline to operate properly, or is simply attaching them to the fiberglass enough to have them do their job?

The cleanout tray at the stern of the boat will definitely allow you the best access, IMO, and below the waterline if that is required. The inspection hatch will allow you accesss, but you'll likely be flying blind with such a small opening. Removing the whole cleanout tray seems like it will be your best and easiest option for installing those. Look around here for all the threads about cleanout tray sealing for a good look at just how large and easy your access will be once you take that off. Removing about a dozen screws and 3 band clamps will get you an opening that's about 1'x4' - super easy access for your project.
 

Brunnen-G

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AR
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That's great info - do those have to be located below the waterline to operate properly, or is simply attaching them to the fiberglass enough to have them do their job?

The cleanout tray at the stern of the boat will definitely allow you the best access, IMO, and below the waterline if that is required. The inspection hatch will allow you accesss, but you'll likely be flying blind with such a small opening. Removing the whole cleanout tray seems like it will be your best and easiest option for installing those. Look around here for all the threads about cleanout tray sealing for a good look at just how large and easy your access will be once you take that off. Removing about a dozen screws and 3 band clamps will get you an opening that's about 1'x4' - super easy access for your project.
Thank you, drewkaree. I'll check it tomorrow. It must be below the waterline when boat is not moving. I need 2 different points apart from each other, preferably one at the stern and another somewhere near the helm.
 

Brunnen-G

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I've installed Ultrasonic Anti-fouling system with 2 transducers and been using it since July. Here is my experience with the system:
1. It definitely slows down the grows, especially barnacles and seaweed.
2. Not really effective against oysters.
3. Consumes 65W of power. I use a power-line from marina.
4. The installation is kind of tricky, see the attached photos:
 

Attachments

RobbieO

Jetboaters Captain
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Interesting to say the least.
 
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