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by SSCBen
Sun Jun 20, 2021 9:23 am
Forum: Humor & Fun
Topic: Fluid Mechanics Homework
Replies: 4
Views: 39

Re: Fluid Mechanics Homework

Nice find. I vaguely recall having a similar problem at the University of Texas at Austin. I wouldn't expect this pressure calculation to be accurate. My guess is that whoever made the problem wants you to assume that there are no flow losses and no drag, both of which are significant factors in the...
by SSCBen
Sun May 16, 2021 8:29 pm
Forum: Water Blasters
Topic: 13M CPS Chinese knock off blaster What?!!(Super Shooter CPS 5000)
Replies: 37
Views: 2773

Re: 13M CPS Chinese knock off blaster What?!!(Super Shooter CPS 5000)

Found a goofy looking version of it on Ebay, will report back once it arrives This one likely is not good. I recall reading somewhere a while back that the ones with angled triggers are air pressure. That seems to be true for the WaterZone XL 3000 as you reported earlier. Keep it up, though, as it'...
by SSCBen
Sun Apr 25, 2021 8:59 pm
Forum: Water Wars
Topic: Battle at the River
Replies: 2
Views: 1232

Re: Battle at the River

Sounds like a nice war overall, and I'm looking forward to part 2.
by SSCBen
Sun Apr 25, 2021 8:31 am
Forum: Water Blasters
Topic: Recommendarions on good blaster
Replies: 1
Views: 143

Re: Recommendarions on good blaster

Welcome to WaterWar.net. The Spyra One is probably the most powerful blaster on the market, but it's fairly expensive and apparently out of stock right now. (Full disclosure: I did some consulting for them.) Some of the copycat blasters are indeed good and comparable to the old CPS series. (Some see...
by SSCBen
Mon Apr 12, 2021 8:45 pm
Forum: Homemades
Topic: Long Range CPS 3200 Replacement
Replies: 2
Views: 211

Re: Long Range CPS 3200 Replacement

Very nice work. I recall being impressed your accumulator tank water guns before and that continues here. I'm also impressed with the trigger. I think the ergonomics could improve, but it's a step in the right direction. Which accumulator tank are you using for this? I might buy a similar one myself...
by SSCBen
Sun Apr 04, 2021 9:04 am
Forum: Homemades
Topic: 2020 vertical jet tests
Replies: 10
Views: 644

Re: 2020 vertical jet tests

I have changed the plan to instead do the tests indoors. I have found a source of precision micro-scale apertures that I could use to scale down the experiments so that they will fit within the space available, and also hopefully not require particularly high pressures. I ordered a 50 μm aperture th...
by SSCBen
Fri Mar 05, 2021 11:04 pm
Forum: Water Blasters
Topic: best water gun
Replies: 1
Views: 309

Re: best water gun

We have an answer to this question on the old SSC frequently asked questions page , quoted here: Which gun is the best? Which gun shoots the farthest? Which gun is the best for this year? Which gun should I choose? "What is the best super soaker ever" is the kind of ambiguous question that you will ...
by SSCBen
Sun Feb 21, 2021 11:16 am
Forum: Homemades
Topic: 2020 vertical jet tests
Replies: 10
Views: 644

Re: 2020 vertical jet tests

No, I haven't posted this before. I was keeping it under wraps for various reasons. I'm posting this with the understanding that this is a work in progress, and new experiments might invalidate it or adjust the constant. d_0 = (C_d* / R*_opt) * R In the equation above, d_0 is the optimal nozzle diam...
by SSCBen
Sat Feb 20, 2021 7:47 pm
Forum: Homemades
Topic: 2020 vertical jet tests
Replies: 10
Views: 644

Re: 2020 vertical jet tests

Is this something you could put into spreadsheet formulas and share via Google Sheets? Or Share via Google Drive if maintained in Excel instead of Google Sheets? The theoretical optimal nozzle diameter equation is quite simple. You wouldn't really need a spreadsheet for it but could use one if you ...
by SSCBen
Sat Feb 20, 2021 1:35 pm
Forum: Homemades
Topic: 2020 vertical jet tests
Replies: 10
Views: 644

Re: 2020 vertical jet tests

The posts above were made before the pandemic and seem rather distant now. :-( I'm planning some new outdoor experiments once it starts to warm up. The indoor vertical jet case is fairly limited by the ceiling height, and given that I don't have access to any building with a ceiling higher than 9 fe...
by SSCBen
Sun Feb 07, 2021 9:53 pm
Forum: Water Wars
Topic: Canal Battle
Replies: 16
Views: 1242

Re: Canal Battle

marauder wrote:
Sun Feb 07, 2021 8:42 pm
Ben, it would be good to have you close by! Did you get a position with a University?
I'm working for the patent office in northern Virginia, remotely for the moment.
by SSCBen
Sun Feb 07, 2021 4:05 pm
Forum: Water Wars
Topic: Canal Battle
Replies: 16
Views: 1242

Re: Canal Battle

Looks like a nice location. I found a map, though I'm not quite sure where each photo is: https://southcarolinaparks.com/landsford-canal/maps-and-brochures I'll be moving to Virginia sometime this year so maybe I could join you all in the future, but not any time soon. (Yes, it seems that the photos...
by SSCBen
Wed Jan 13, 2021 10:54 am
Forum: Water Blasters
Topic: 2021 Adventure Force Soakers - Including a Pressurized One!
Replies: 4
Views: 574

Re: 2021 Adventure Force Soakers - Including a Pressurized One!

Thanks for posting. That spring mechanism is quite interesting, and a good way to reduce the pumping force. Almost reminds me of the proposals to use telescopic tubes of progressively smaller diameter to reduce the pumping force as pressure gets higher (I believe there are some existing e.g. bike pu...
by SSCBen
Mon Nov 30, 2020 8:31 pm
Forum: Homemades
Topic: Convert your homemade water gun to be compatible with the Super Soaker quick charge fill port.
Replies: 3
Views: 665

Re: Convert your homemade water gun to be compatible with the Super Soaker quick charge fill port.

Nice video. I'm impressed by the number of views in less than a week. I'd recommend linking to WWN as I think we need all the advertising we could get.

Hopefully my schedule will clear out next year and I can make a few homemade water gun videos of my own...
by SSCBen
Thu Nov 26, 2020 2:50 pm
Forum: Homemades
Topic: Convert your homemade water gun to be compatible with the Super Soaker quick charge fill port.
Replies: 3
Views: 665

Re: Convert your homemade water gun to be compatible with the Super Soaker quick charge fill port.

Great find. I suppose the female version of the same fitting will work for those who want a replacement for broken QFDs?

I saw some comments on the photos. Did you post this elsewhere? I'm always looking to find others interested in water guns.
by SSCBen
Sat Nov 21, 2020 10:34 am
Forum: Water Blasters
Topic: Your Armory
Replies: 317
Views: 66504

Re: Your Armory

Living in Hawaii without A/C my wife and I have water gun fights to cool off. For battles my wife prefers the one I made her in on the bottom left with the red band of duct tape across the tank because it's powerful and much quicker to pressurize than the larger CPS guns. She also likes the Spyras ...
by SSCBen
Tue Sep 29, 2020 6:03 pm
Forum: Maintenance & Repairs
Topic: CPS 1200 pump not working,does not pump water
Replies: 6
Views: 1391

Re: CPS 1200 pump not working,does not pump water

This is a hard one. No obvious issues from the photos. My guess is that what broke is inside the valves and not visible. Most likely the first check valve broke or is clogged. Look down the open end that leads to the first check valve. (Front-most green part in the second photo.) Can you see anythin...
by SSCBen
Tue Sep 29, 2020 5:44 pm
Forum: Water Blasters
Topic: 13M CPS Chinese knock off blaster What?!!(Super Shooter CPS 5000)
Replies: 37
Views: 2773

Re: 13M CPS Chinese knock off blaster What?!!(Super Shooter CPS 5000)

Really glad to hear this is a good clone. Where did you buy the Water Gun 9000? I couldn't find any on eBay.

The flimsiness might be okay if we can reinforce the blaster. I'd recommend putting a dowel rod inside of the pump rod, possibly epoxying it in place for extra strength.
by SSCBen
Mon Sep 28, 2020 8:49 pm
Forum: Maintenance & Repairs
Topic: CPS 1200 pump not working,does not pump water
Replies: 6
Views: 1391

Re: CPS 1200 pump not working,does not pump water

More information is needed in order to figure out what broke. Can you upload a photo of the internals of the water gun? A close up shot of the valves the pump is attached to would be most useful, but others could be helpful too. Which tube are you referring to when you say "no water is being pumped ...
by SSCBen
Mon Sep 28, 2020 7:18 pm
Forum: Homemades
Topic: YouTube homemade water guns
Replies: 4
Views: 1449

Re: YouTube homemade water guns

https://youtu.be/u5wfqGp2Q-E This one looks like it would be fun if it was scaled up. Nice find. I'd be wary of using that in an actual water war due to the exposed batteries, but the power is better than I expected. Scaled up and with the batteries in a sealed compartment that could be a very nice...