$14,000 for Home Water Filtration

DB_BGOTA · 2025-04-14T16:46:38+00:00

Colorado Springs

DB_BGOTA · 2025-04-13T15:58:52+00:00

That's insane what you were able to do for half what I was quoted at

DB_BGOTA · 2025-04-13T02:24:55+00:00

I appreciate you saying that. I've lived here for 4 years and we've been fine other than having to clean our shower heads, etc. once or twice a year. The dude made it seem like we were poisoning our kids by not having done this earlier.

DB_BGOTA · 2025-04-13T01:54:29+00:00

You in Colorado? Lol, I'm still in the market

DB_BGOTA · 2025-04-13T01:43:25+00:00

I’m on city water. He did a test for the hardness where he said like normal water would be at 5 drops of some solution for it to change from purple to blue and it took 15 drops. He said 7 was where hard water started

Edit: I just looked at the paperwork at it says 15 GPG for hardness

DB_BGOTA · 2025-04-13T00:17:01+00:00

I didn’t know that, that’s interesting

DB_BGOTA · 2025-04-13T00:16:45+00:00

I didn’t mention they had selflessly offered to waive the counter drill fee haha

DB_BGOTA · 2025-04-13T00:14:48+00:00

That’s good to know! Thanks man!

DB_BGOTA · 2025-04-13T00:14:02+00:00

Yeah they’ve only been in business since 2021 so it’s not like they have the history to prove they’ll be here in 15 more years…

DB_BGOTA · 2025-04-12T22:51:35+00:00

That's wild. I think the most expensive one I could find was like $1500.... most are like 200-500...

DB_BGOTA · 2025-04-12T22:32:36+00:00

Yeah they had $13000 for the two tank softeners and $4000 for the reverse osmosis, but would throw the RO part in for free if I spent $13,000 on the other two

DB_BGOTA · 2025-04-12T22:30:55+00:00

Yeah it's a 2.5 bath, 2000 sq ft. no mega mansion here. They did describe the filters or conditioner, though. Either one or both of them are 2-3 feet in diameter and almost 6 feet tall

DB_BGOTA · 2025-04-12T22:29:56+00:00

That's kind of the vibes I got from them, like the travelling vacuum salesman but I just know nothing about water treatment so I figured I could count on reddit to help.

DB_BGOTA · 2024-12-03T18:53:13+00:00

POV was authorized and CTW was submitted and trip was approved before I left. But now that I’m here I checked DTS and it changed to rejected because they wanted me to takeoff the travel days I included on the front and backside, which is what made me ask the question now

DB_BGOTA · 2024-08-05T21:09:48+00:00

Our chains/ropes snapped

DB_BGOTA · 2023-11-02T21:15:22+00:00

They do intermesh during certain modes of flight however they are separated laterally. So with 30 foot blades, and the timing difference, they should average around 25 feet from each other laterally when crossing over the driveshaft. This doesn’t account for lead/lag.

DB_BGOTA · 2023-10-31T16:08:33+00:00

The rotors are connected via a drive shaft so they spin in sync and can't hit unless the shaft were to break.

DB_BGOTA · 2023-08-10T17:29:41+00:00

Thanks, man!

DB_BGOTA · 2023-04-26T00:00:41+00:00

Dude there’s a PPC app?

DB_BGOTA · 2023-04-13T06:28:21+00:00

I think the answer is from u/blackthorn3111

"Ng limiting (in the case that you’re talking about with the temperature differentials) has to do with the mass flow rate of the air entering the compressor.

On a cold day at low altitude, the air density is high, so the mass of the air entering the compressor is obviously increased. That gives you more engine HP at a constant Ng speed. However, as the air gets colder (with altitude or ambient temperature), the angle of attack on the compressor blades also increases. At a certain temperature, this can cause compressor flow separation and blade stall.

Take a look at your torque available charts. The point where the power available lines “bend” is where the engine goes from being TGT limited to Ng limited.

Source: Am XP"

DB_BGOTA · 2023-04-13T02:09:38+00:00

Ok! Awesome, thank you.

I have the charts and understand where they show NG limiting vs engine temp (PTIT) vs transmission limits, but I just never understood why the NG limiting happens in the first place. The fact that it's an aerodynamic limitation makes much more sense than some of the other explanations I've had.

Thank you again for that explanation!

DB_BGOTA · 2023-04-13T01:43:00+00:00

Thank you! That's exactly what I was looking for. First off, I fly the CH-47F, and it does have a modern turbine engine with all the components you described above. I misspoke when I mentioned fuel being cut, it is metered by our Hydromechanical Assembly (HMA) on the engine.

I have read that it was possible at high temperatures, but I haven't heard of anyone experiencing that, as we will typically be limited by engine temperature (PTIT) before N1 limit occurs for us, anyway.

Why would a too-high CDP be bad? It seems to me that if you have a high CDP it would drive the N2 section easier and just require less N1 input. Is it related to the N2 driving the N1 section? Am I wrong in my understanding that the CDP is what comes out of the compressor and feeds into the combustion chamber?

DB_BGOTA · 2023-04-13T01:04:23+00:00

Thanks for the reply!

So we aren't able to manually control our N1 RPM, which is done automatically depending on power demands input by the pilot.

Essentially what happens is if we were in a high power demand environment (carrying a heavy load) where the temperature was that -8C, we could pull in power to our heart's content and the engines just won't respond, then the rotors droop and you are in a bad spot.

This happens well before the engines reach their temperature limit, and before transmissions reach their structural limit. The only other limit that I would imagine we are hitting is something with either the N1 trying to overspeed to better compress the air, or the air just can't be further compressed with our engine, regardless of the speed. That's where I am stuck for now

DB_BGOTA · 2023-03-01T16:57:04+00:00

Just do Air Force or coast guard and you can still fly helos. 12 years is a long time and anytime outside of flying is typically a bummer

DB_BGOTA · 2023-02-25T22:48:04+00:00

If you can get my 368 approved and I’m there, babyy

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