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Cold Temperature Storage of Inflatable Dinghys
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colbysmith



Joined: 02 Oct 2011
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PostPosted: Thu Feb 13, 2025 12:09 pm    Post subject: Cold Temperature Storage of Inflatable Dinghys Reply with quote

Getting ready to head down south, and will be taking our inflatable kayaks with us. One a Hobie, the other a Sea Eagle. I store them inside all winter, (and then summer too when not in use.) They are stored rolled up, rather tightly. Looks like I will have two days travel with temps below freezing, close to 0 at night, and not above freezing during the day. I plan to haul the rolled up Kayaks in the back of my truck beneath it's tonneau cover, so while they will be out of the weather, they will still be in sub freezing temperatures for a couple of days. Is this a bad thing? Ie, harmful to the kayak material? I will not be moving them, or unrolling them until we are in Florida, and above freezing. The other option is to keep them in the boat, with the Webasto running. (Really hoping we can keep the cabin in the 50's even with outside single digit temps, as we'll be "boaterhoming" on the way down.)
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C-Wolfe



Joined: 16 Sep 2020
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PostPosted: Thu Feb 13, 2025 1:03 pm    Post subject: Reply with quote

Colby, I have been boating here in Alaska for 20 years now, I always kept my dinghy in an unheated shed for the winter mounts, with temperatures reaching 40 below at times. I never touch it or move it around during below freezing temperatures. I haven’t seen any issues with doing it this way. Different material and glue might react differently but I had several different one and none had issues. hope this help
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colbysmith



Joined: 02 Oct 2011
Posts: 4967
City/Region: Madison
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C-Dory Year: 2009
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Vessel Name: C-Traveler
Photos: C-Traveler and Midnight-Flyer
PostPosted: Thu Feb 13, 2025 1:10 pm    Post subject: Reply with quote

C-Wolfe wrote:
Colby, I have been boating here in Alaska for 20 years now, I always kept my dinghy in an unheated shed for the winter mounts, with temperatures reaching 40 below at times. I never touch it or move it around during below freezing temperatures. I haven’t seen any issues with doing it this way. Different material and glue might react differently but I had several different one and none had issues. hope this help


Thanks, makes me feel better. I've traveled with them before below freezing, but only by a couple of degrees colder. Heading south earlier this year, and we're in the middle of another cold snap... Colby
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Donald Tyson



Joined: 24 Jul 2023
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PostPosted: Thu Feb 13, 2025 1:39 pm    Post subject: Reply with quote

I’m buying an inflatable dinghy today. Is the foot pump sufficient or should I buy and inflator?
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Schuster



Joined: 25 Mar 2009
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PostPosted: Thu Feb 13, 2025 1:57 pm    Post subject: Reply with quote

Donald, if you are buying a new dingy then the foot pump is made for the dingy and should be quite adequate. If you have some sort of physical limitations then maybe the electric pump may help. I have a 9' boat that i pump with the foot pump. It takes a few minutes to do but I've usually go plenty of time for that.
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ssobol



Joined: 27 Oct 2012
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PostPosted: Thu Feb 13, 2025 2:39 pm    Post subject: Reply with quote

Donald Tyson wrote:
I’m buying an inflatable dinghy today. Is the foot pump sufficient or should I buy and inflator?


The foot pump will work, but depending on the size of the dinghy will take some work.

If you buy an electric inflator, be sure to buy one that has a high pressure mode (meant for drop stitch things). A regular inflator (say for an air bed) will usually not be able to put out sufficient air to pump up a dinghy to the required pressure. It will help by doing a good part of the work, but you'll have to top it off manually to get the boat tubes to the correct pressure.

You can get a suitable inflator from Amazon for US$50-70. This type of inflator allows you to set the appropriate pressure and they will automatically stop when that pressure is sensed.
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thataway



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PostPosted: Thu Feb 13, 2025 2:54 pm    Post subject: Reply with quote

Agree with Ssobol. I have owned inflatable dinghies since 1964 (over there 60 years). When I was young, we had only foot pumps. We used to have a race at Two Harbors Catalina. The boat started in the bag, only one manual pump, but oral was also OK. Launch the dinghy with any number of people you want. Paddle about 100 yards, return to shore, roll up and store the boat in the original bag. Our team came in second place the first two years, and 3rd place the 3rd year. The shore boat and harbor patrol always seemed to beat us. Our team worked out and practiced for many weeks before the race. The initial prizes were a new inflatable, or Sea Gull Outboard motor, next year the prize was a set of sleeping bags. Then down to tee shirts and some bangles....

As we age, the foot pump can be an issue. We used a "Jump pack" (12V). clipped to the pump which solved the power source issue. We could inflate on the cabin top, foredeck and the cockpit if necessary.

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Donald Tyson



Joined: 24 Jul 2023
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PostPosted: Thu Feb 13, 2025 9:03 pm    Post subject: Reply with quote

I was looking at a Ryobi inflator. I have a lot of Ryobi tools and am fond of them and their affordability. But I'm hoping to use the foot pump at first. I have the time and inclination so I may find that to be fine for a while.


A few years ago I found a used old Seagull Motor. I thought about collecting them as a hobby sort of thing. Tell me about them. Were they reliable?
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thataway



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PostPosted: Thu Feb 13, 2025 10:26 pm    Post subject: Reply with quote

Robi inflator. Not sure which one you are considering. The centrifugal with conical nozzle may or may not fit the valve on the inflatable. Having a hose with the proper fitting Halkey Roberts is the valve which most inflatable boats have. In my spares kit, I kept at least one valve, several adaptors, glue and fabric for the boat I had at the time. If you need the high pressure for an air floor, these centrifugal vane inflators will not supply enough pressure.

Get an inflator which you can set the pressure or that has a pressure gauge. The electric are so handy, I would not consider a foot or hand pump, except for a back up.
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ssobol



Joined: 27 Oct 2012
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PostPosted: Thu Feb 13, 2025 10:46 pm    Post subject: Reply with quote

thataway wrote:
...
Get an inflator which you can set the pressure or that has a pressure gauge. The electric are so handy, I would not consider a foot or hand pump, except for a back up.


Foot pump or hand pump is good to take with you in the dinghy when you are away from electricity and the boat needs a top up (leak or temperature change).
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thataway



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PostPosted: Thu Feb 13, 2025 11:03 pm    Post subject: Reply with quote

ssobol wrote:

Foot pump or hand pump is good to take with you in the dinghy when you are away from electricity and the boat needs a top up (leak or temperature change).


Do you mean in the C Dory or the inflatable? I have traveled as much as 30 or so miles from the "mother ship" and not carried an inflatable pump in the dinghy. On the other hand, I do often carry a foot pump on the "mother ship" as a back up for the electric pump.. However on long trips I carry some "Kicker"--and these trips were in RIB or large inflatables which could go on a plane in the 20 mph speed, with plenty of fuel. For example on our 12 1/2' RIB I would carry a 4 hp outboard to supplement the 25 hp which was the main engine. Occasionally on longer trips, I would take a 9.9 hp motor. We also had not only our ditch bag, but water and food, as well as more warm clothes and a poncho or similar for each person aboard.
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ssobol



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PostPosted: Fri Feb 14, 2025 2:02 am    Post subject: Reply with quote

thataway wrote:
ssobol wrote:

Foot pump or hand pump is good to take with you in the dinghy when you are away from electricity and the boat needs a top up (leak or temperature change).


Do you mean in the C Dory or the inflatable? I have traveled as much as 30 or so miles from the "mother ship" and not carried an inflatable pump in the dinghy. On the other hand, I do often carry a foot pump on the "mother ship" as a back up for the electric pump.. However on long trips I carry some "Kicker"--and these trips were in RIB or large inflatables which could go on a plane in the 20 mph speed, with plenty of fuel. For example on our 12 1/2' RIB I would carry a 4 hp outboard to supplement the 25 hp which was the main engine. Occasionally on longer trips, I would take a 9.9 hp motor. We also had not only our ditch bag, but water and food, as well as more warm clothes and a poncho or similar for each person aboard.


I mean on the inflatable. I use the electric pump on the mothership (12vdc). IME, if you go on long excursions with the dinghy you might get a leak, which even if you patch it on the spot will require adding air to a tube.
The other case is temperature swings. You might find that your inflatable, which was pumped up firm in mid afternoon on a sunny day, gets a bit flabby once the sun goes down and needs a top up.

I had a decent sized RIB awhile ago. One day, when we set out it was pumped up properly. Later in the day a thunderstorm and a cold from went through. This dropped the ambient temp by about 20 deg F. Between the cooling effect of the rain and the temp change, the tubes on the RIB got pretty soft and needed to have air added. Difficult to do without having a pump at hand.

If the inflatable has decent surface contact with the water, the temp changes (and associated pressure change) can be moderated by the relatively constant temperature of the water. However, if your inflatable is tossed on the top of the cabin roof this stabilizing effect is missing.
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C-Wolfe



Joined: 16 Sep 2020
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PostPosted: Fri Feb 14, 2025 3:04 am    Post subject: Reply with quote

I have experienced several times those temperature change affecting the air pressure on the dinghy. Happens mostly in the morning when at the "mother ship” but also a few times where I go to shore in the afternoon for a nice long walk, come back early evening just before sun set to find quite soft tube on the raft. I modified a small bike pump, the portable kind that you will take with you on a bike ride. it’s quite slow but it works, and it doesn’t take any room. It's a lot more convenient and much less likely to be left behind than a cumbersome big foot pump .
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Donald Tyson



Joined: 24 Jul 2023
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PostPosted: Fri Feb 14, 2025 8:48 am    Post subject: Reply with quote

Is altitude an issue for these boats. Does the pressure change enough btwn Donner Pass and Sacramento warrant deflating them before descending. Somewhere in the middle here my the suction cups of my EZPass often let go. And tires change pressure. Doe this threaten an inflatable.
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Donald Tyson



Joined: 24 Jul 2023
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PostPosted: Fri Feb 14, 2025 9:44 am    Post subject: Reply with quote

https://www.nrs.com/learn/inflatable-boat-use-care-instructions?srsltid=AfmBOoqRtOcP-AVN-XnBOBJftLS8PTVb52IMiu2UkRqXeLqBCE-bbUTv
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