Author Topic: VP2 tipping spoon raingauge?  (Read 22792 times)

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Offline BrianLehan

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Re: VP2 tipping spoon raingauge?
« Reply #375 on: July 22, 2020, 06:02:44 PM »
So the old style see-saw tipping bucket used two outlet wells to distribute water out the bottom, whereas the spoon only uses one of them. I find that my maintenance routine had to be adjusted to monthly look at the well being used and remove debris as necessary. I have a ton of pines in my area and the rice sized needles collect often.

Is it possible yours became full or partially clogged and with that much rain in an hour, they backed up into the bottom of the unit?
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Offline Dj1225

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Re: VP2 tipping spoon raingauge?
« Reply #376 on: July 22, 2020, 07:50:42 PM »
Is it possible yours became full or partially clogged and with that much rain in an hour, they backed up into the bottom of the unit?

No it was clear nothing was clogging the drain holes.

Offline miraculon

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Re: VP2 tipping spoon raingauge?
« Reply #377 on: July 23, 2020, 09:07:46 AM »
Perhaps that high rain rate just overwhelmed the drainage port?

Quote
high rain rate was 7.38"

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Offline mcrossley

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Re: VP2 tipping spoon raingauge?
« Reply #378 on: July 23, 2020, 10:31:17 AM »
As there is a blob of water on the side of the spoon assembly, it may have overwhelmed the spoon as well - or at least been splashing out?
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Offline Dj1225

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Re: VP2 tipping spoon raingauge?
« Reply #379 on: July 23, 2020, 11:02:37 AM »
Perhaps that high rain rate just overwhelmed the drainage port?

Quote
high rain rate was 7.38"

Greg H.

As there is a blob of water on the side of the spoon assembly, it may have overwhelmed the spoon as well - or at least been splashing out?

Hmmm #-o well since it seems like it can't handle the high rain rates along the gulf coast I guess I'll switch back to the old style tipper  ](*,)

Offline Dj1225

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Re: VP2 tipping spoon raingauge?
« Reply #380 on: July 27, 2020, 01:18:52 AM »
Update...I guess installing the tipping spoon I made the base unlevel and that might have been the problem with the puddle on the side. I leveled the base and haven't seen any water puddling since, even with a rain rate on the 25th of 9.00"/hr. As most noted in here last year there is a slight positive bias comparing it with the cocorahs gauge. I've had rain everyday since Wednesday the 22nd we've been on the wet side of Hurricane Hannah here on the Mississippi Gulf Coast here are my comparisons.....

7/22 VP2 0.83" (with water puddled on the base) Coco 0.81"

7/23 VP2 0.20"   Coco 0.18"

7/24 VP2 1.51"   Coco 1.48"

7/25 VP2 2.22"   Coco 2.16"

7/26 VP2 0.71"   Coco 0.68"
« Last Edit: July 27, 2020, 01:21:02 AM by Dj1225 »

Offline johnd

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Re: VP2 tipping spoon raingauge?
« Reply #381 on: July 27, 2020, 03:31:09 AM »
TBH that looks like as good agreement as you're likely to get when comparing any two rain gauges.
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Offline Dj1225

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Re: VP2 tipping spoon raingauge?
« Reply #382 on: July 27, 2020, 07:38:44 AM »
TBH that looks like as good agreement as you're likely to get when comparing any two rain gauges.

Yeah I agree and I'm definitely happy with the results. Much better than the original tipper.

Offline Mapantz

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Re: VP2 tipping spoon raingauge?
« Reply #383 on: August 28, 2020, 08:38:46 AM »
I just wanted to make a quick post regarding my spoon tipper.. I'm over the moon with it!

Yesterday saw an absolute biblical amount of rain in a short space of time, I certainly have never seen anything like it! I recorded a rain rate of 411 mm/hr - the radar reflectivity dBz showed rainfall rates off of the scale.

The rain gauge is always recording the same amount of rain as my manual gauge at the same height, just two feet apart. It's very consistent and copes with the extreme downpours we're having at the moment. Best decision I made was to replace the old see-saw tipper.


Offline ConligWX

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Re: VP2 tipping spoon raingauge?
« Reply #384 on: August 28, 2020, 08:44:04 AM »
That's some rain! Have to agree the tipping spoon upgrade was a no brainer for me.

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Offline Jasiu

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Re: VP2 tipping spoon raingauge?
« Reply #385 on: August 28, 2020, 03:21:48 PM »
I put in a tipping spoon a few weeks ago and my only complaint is that it hasn't done anything to end our drought.  :-|

But when it has rained, it's always been within .01" of the CoCo gauge, which is as good as it gets and wasn't the case with the see-saw.

Offline WheatonRon

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Re: VP2 tipping spoon raingauge?
« Reply #386 on: September 28, 2020, 04:43:43 PM »
It has been a month since anybody posted anything in this thread so I decided to post some additional observations regarding the Davis spoon tipper. I have 3 VP2s—2 with the spoon tipper the other with the see saw tipper. Over time I have found the spoon tipper more accurate than the see-saw tipper AS LONG as the spoon is kept clean of debris. Awhile back, one of my spoon tippers started grossly over reporting rainfall. I ventured out to the ISS and found “gunk” from birds and God knows what else in the spoon that remained there even after dropping accumulated rainfall. This had a dramatic effect of over reporting rain. Once I removed the gunk, the spoon tipper started reporting rainfall accurately again. For whatever reason, the see saw tipper doesn’t have this issue—its gunk gets eliminated when tipping rain. In short? Like most things in life, you have to maintain it, or it loses its purpose—correctly measuring and measuring rainfall!
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Offline ConligWX

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Re: VP2 tipping spoon raingauge?
« Reply #387 on: September 28, 2020, 05:15:43 PM »
yep just cleaned my ISS on sunday.  the spoon and the shoot that the spoon dumps water into had dirt build up on the surfaces. The AeroCone however was very clean.  Maybe the birds in my area are not very good shots at the cone  :lol:

My FARS Shield was pretty black inside too, though its like new now.
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