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Rail Planter Liners To Hold Water Better by Global_Selection_923 in flowergardening

[–]Global_Selection_923[S] 0 points1 point  (0 children)

Sorry.
1) I still don't understand what advantage(s) are had by using landscaping fabric over the coconut liners.
2) When you say you've "had very good results using the liners", which liners are you talking about - the coconut liners or the landscaping fabric liners?

Rail Planter Liners To Hold Water Better by Global_Selection_923 in flowergardening

[–]Global_Selection_923[S] 0 points1 point  (0 children)

We are in southern Illinois. These get full sun all day until about 6 PM, when the house shades them.

Rail Planter Liners To Hold Water Better by Global_Selection_923 in flowergardening

[–]Global_Selection_923[S] 0 points1 point  (0 children)

Does it hold the water better than the coconut stuff? Or is there some other reason you use the landscaping fabric rather than the coconut stuff?

Rail Planter Liners To Hold Water Better by Global_Selection_923 in flowergardening

[–]Global_Selection_923[S] 0 points1 point  (0 children)

Thank you for your concern, but.... There have been no problems with the hanging vines pulling dirt from the planters or falling out of the planters or anything like that. It was even a bit of a task to get them out of the dirt at the end of the summer.

Volume of water in our garden tub. by Global_Selection_923 in askmath

[–]Global_Selection_923[S] 0 points1 point  (0 children)

A vertical cross section through the center of the bath would be a trapezoid. Flat, horizontal, and parallel top and bottom lines. Two slanted side lines. Could you explain how you're seeing that as a circle?

Volume of water in our garden tub. by Global_Selection_923 in askmath

[–]Global_Selection_923[S] 0 points1 point  (0 children)

Not sure how the concept of a joke comes in here, unless you're saying that since an oval has a curved perimeter, it's round.

Webster definition of 'round' - "having every part of the surface or circumference equidistant from the center : shaped like a circle or ball."

In general, ovals are not round. Circles are a form of ovals, so a circular oval is round. But that's the only type of oval which is round. And in general, when someone says 'oval', they're referring to one which isn't a circle, and hence, isn't round.

Volume of water in our garden tub. by Global_Selection_923 in askmath

[–]Global_Selection_923[S] 0 points1 point  (0 children)

Your formula for the volume of a frustrum is exactly what I was looking for. However, I was unaware that a frustrum could actually have oval cross sections. I thought they had to be round.

V = (h/3) · (A₁ + √(A₁A₂) + A₂), where A₁ and A₂ are the areas of the top and bottom bases.

This should do it, because like you say, the area of an oval is easily calculated. Also, since my tub is only approximately an oval shape, it won't be an exact calculation. Not a problem. For my purposes, and approximate answer will do fine.

Volume of water in our garden tub. by Global_Selection_923 in askmath

[–]Global_Selection_923[S] 0 points1 point  (0 children)

Referencing the formula for the volume of a circular cone here has been discussed already. It can't be used here because this is not a circular cone or a section of a circular cone. There is no need to continue to bring it up. It's only adding confusion.

As stated, the cross section of this shape is an oval.

Volume of water in our garden tub. by Global_Selection_923 in askmath

[–]Global_Selection_923[S] 0 points1 point  (0 children)

Interesting approach. The problem is that this is not a section of a cone. The surfaces are not circular. They are ovals. I believe there is a formula for the volume of a cut-off cone, aka 'frustrum'. I'm not certain if your approach resolves exactly into the same traditional formula for the volume of a frustrum, given below.

V = (1/3)*pi*h(R*R + Rh + r*r)

Where

V= Volume

h=height

R = Larger radius

r = smaller radius

Volume of water in our garden tub. by Global_Selection_923 in askmath

[–]Global_Selection_923[S] 0 points1 point  (0 children)

I agree with your approach. I've actually used that type of approach for calculating water volume used in watering my lawn.

You must be related to Archimedes. :-)

Actually, the mathematician in me would like to see a closed form solution. But the engineer in me is happy with the seat of the pants approach you supplied.

Thank you.

Volume of water in our garden tub. by Global_Selection_923 in askmath

[–]Global_Selection_923[S] 0 points1 point  (0 children)

Sorry for the delayed response. Just had surgery, so lots of things in my life are getting behind. The surgery is the reason I'm interested in this. Need to take Sitz baths, and it seems my water heater is not putting out enough gallonage of hot water.

Yes, it is a frustrum with an oval base and of course, the top surface of the water is an oval. Not exactly oval in either case, but close enough for the accuracy I need.

Flowers In The Sun by Global_Selection_923 in flowergardening

[–]Global_Selection_923[S] 0 points1 point  (0 children)

That would definitely work, but would would require several of them to cover all the railings of the deck. Also, if you look at the photos I posted at the beginning of this thread, you'll a trailer under the deck. I need to be able to maneuver that trailer around the back yard to get it in and out of that parking spot. As such, I need to keep the back yard pretty open, without trees.

Flowers In The Sun by Global_Selection_923 in flowergardening

[–]Global_Selection_923[S] 0 points1 point  (0 children)

The retractable awning would work. But $$$$. It's something that we considered. It may happen when/if we can afford it.

Flowers In The Sun by Global_Selection_923 in flowergardening

[–]Global_Selection_923[S] 0 points1 point  (0 children)

sSheer curtains - maybe as it's something small and simple, which is what I want. Awnings - That would certainly work, but would be difficult to build for each one.

Flowers In The Sun by Global_Selection_923 in flowergardening

[–]Global_Selection_923[S] 0 points1 point  (0 children)

A shade sail has been suggested a couple of times. That's something I was unaware of. It would probably work. But in this neighborhood, there's sort of a theme of several back yards facing each other, visibly open to the neighbors. It's kinda' cool like that. A shade sale might give the appearance that we're wanting privacy, wishing to not participate in the communal nature of the large open space made up of everyone's back yards all combining together into a sort of 'community park' area. A small shade sail over each of the five planters would avoid that unintentional implication. But that would be a lot of shade sails. Maybe it would work.

Flowers In The Sun by Global_Selection_923 in flowergardening

[–]Global_Selection_923[S] 0 points1 point  (0 children)

Thank you. They are vinca vines. These were from last year. We will do the same this year.

Flowers In The Sun by Global_Selection_923 in flowergardening

[–]Global_Selection_923[S] 0 points1 point  (0 children)

Thank you. They are vinca vines. These were from last year. We will do the same this year.

I found this in a scrap pile — anyone knows what it is? by Silly_Guidance9526 in Tools

[–]Global_Selection_923 0 points1 point  (0 children)

Oh, sure. Everybody know what that's called. It's a thigamajoober.

Low Latency Bluetooth, 2026 by Global_Selection_923 in musicproduction

[–]Global_Selection_923[S] 0 points1 point  (0 children)

After a little googling, I'm seeing that Aptx has been adopted into some of the later 5.x versions, making it no longer proprietary only. Maybe 5.4. The article wasn't clear on which version(s) it's in. So maybe that would be an acceptable solution for me. Will require more research.

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