Choosing the Right Compressor for Winterizing Garden Water System

Hello,
I'm going to buy a compressor, but despite reading many posts, I still don't know what to choose .. I've never had a compressor in my hands, so I don't know anything about it.

I need a compressor, mainly for blowing out the water supply in the garden before winter. The installation is made of a fi25 pipe, 2 branches, approx. 30 meters each.

I would like to ask you for help in choosing the compressor that I should buy for this. I prefer to spend even a little more, but that it is decent equipment, which will also be useful for other small tasks at home.

1) Basic question - how big a tank do I need? Is 6 liters enough for me?

2) In my case, efficiency is more important than pressure, right?

3) If the tank is 6 liters, pressure 8 bar, is it approximately 6 * 8 = 48 liters of compressed air?
I calculated that one tube is below 15 liters for me, so is a 6l compressor enough?

4) I am thinking of buying this http://allegro.pl/stanley-kompresor-bezolejowy-sprezarka-6l-8-bar-i2723666546.html (STANLEY 6L / 1.5KM / 8 bar).
Will it be suitable for me, enough to get rid of water from the installation?
Or maybe you recommend something else? I want it to be as small and comfortable as possible.

5) Is the above-mentioned "Capacity 180L / min" a continuous pump capacity?

6) How long can it take to fill the tank to full with this compressor? Because I came across the topics of people who say that their compressors pump up for 15-20 minutes or more .. It's standard, did they have poor pumps?

greetings
Radek

The 6L tank is very little, 50L is the absolute minimum for any application.
http://www.castorama.pl/kompresor-olejowy-50-l.html

For such use, it is enough, the basis is the skillful removal of water. Do not pump the air into the pipes non-stop, but wait until the compressor is full and then let the air out. Until then. Every year I use a 20-liter compressor to drain my brother's water, and the installation is about 700 meters long. Two hours and it's over. This compressor will fill it up in about 2 minutes, max.

Thanks for the answers, but to be honest I still don't know what to do.
One friend says that 50l is the minimum for anything, and the other that I can take the small one and I can do it ...
But if @Andreff You can do 700m with a 20L, then my 30m on 6L should do as well.

I will definitely not take 50l, if I would have to dig a separate room in the basement for tools At most 24 liters, but it's also a lot.

Could someone else comment, preferably someone who also flushes the water by himself and has some experience :)

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A few months have passed since this question, but I decided to write another one, because maybe someone who has a similar problem will find this thread.

I bought a STANLEY 6L / 1.5KM / 8 bar compressor and I am very happy with it.
It is fully suitable for my small, garden installation. I removed the water from the pipes without any problems. Of course, I was doing it by leaps and bounds - filling the tank to the maximum and then all the air in the pipe, filling it to the maximum again .... etc. After a few times, there was no water.
By the way, it is useful at home, for cleaning dust from various things (radiators, computers, old equipment)

There is even nothing to think about, borrow a small compressor somewhere, and you'll find out. A 30-meter-long emptying installation is laughter in the room. This can be done with a bicycle pump.

And how to connect it to taps? Need some special tips to buy?

oShibby wrote:

And how to connect it to taps? Need some special tips to buy?

But you did the excavation, it's good that the e-mail notification called me
I went to Castorama and completed my kit on the spot. I bought a "gun", some adapter (I could fit something out of two parts), a piece of rubber tube and a tap end. Such a miracle was created:




A few days ago I was blowing the installation in its third season, and it's been doing very well.

I counted on the e-mail notification to be triggered.
Oh, a beautiful miracle It's nice that you pasted the photo.

Just ask for an explanation of what and where to put, and how to advise this photo.
In Leroy, they swore that there could be nothing gardening, because it was the pressure, etc. I tell them that the pressure of the ass would not break it, that it was weak, but nothing too constrained.
I have quick couplers on the taps (I guess green geolia) and the most convenient way to connect the compressor so that it is under the quick coupler, is it possible?
And I want to buy the compressor as small as possible, 6L Stanley maybe? There aren't many meters to blow.

oShibby wrote:

I counted on the e-mail notification to be triggered.
Oh, a beautiful miracle It's nice that you pasted the photo.

Just ask for an explanation of what and where to put, and how to advise this photo.
In Leroy, they swore that there could be nothing gardening, because it was the pressure, etc. I tell them that the pressure of the ass would not break it, that it was weak, but nothing too constrained.
I have quick couplers on the taps (I guess green geolia) and the most convenient way to connect the compressor so that it is under the quick coupler, is it possible?
And I want to buy the compressor as small as possible, 6L Stanley maybe? There aren't too many meters to blow.

Well, as I wrote above, I have a Stanley 6L and it is enough for me.

I bought parts in Castorama and the guy looked at me a bit strangely, but he helped me choose the right parts and I managed to put the whole thing together.

One by one it is like this: for the compressor, you need to buy a hose (standard for compressors). Then you put the gun on the hose. Then, from the "barrel" of the gun, I unscrewed the end that was in the set and bought another one, the same as at the bottom, a standard compressor connector. I put a coupler on it, then an adapter, I guess, so that finally I got something that I was able to stretch and fasten a rubber hose on. At the other end of the tubing, I put a 3/4 inch threaded end which I screw directly onto the tap.
You have quick couplings on your taps, you won't stick to them. You have to unscrew this quick coupler and then you will have a bare thread (probably 3/4 inch, but you have to check) and screw the thread on the hose for that.
I don't think I can describe in more detail.
At Leroy Merlin, they do not know what they have, often I know more than the "expert" I ask, especially no non-standard configurations fit in their minds. I recommend Castorama if you have one in the area.
In general, do not explain what and for what, just show the guy this 3/4 inch threaded tip and say that you want to connect it to the compressor, then when it is kumaty, you will find a set of strange connectors and transitions, as with me.

The compressor has a special knob that allows you to reduce the air pressure at the outlet. When you are blowing water out, in no case do not pack 8 bar full of water into the pipes, because your couplings will break once two. At the beginning, 2-3 bars and blow out the water. Only then, when it is "empty", you can increase the pressure to blow out the remnants. Blowing has to be done in portions - you let the compressor fill you up, then you blow, refill, blow ... The charm of a small tank For me, with many branches and many independent sprinklers, all blowing takes up to half an hour now.

I did as everyone said that it is impossible.

A small compressor for a car lighter (PLN 15), a short piece of hose, on one side connected with the compressor with adhesive tape (gray), on the other side I left the quick coupler and connected it to the tap (and I did not have to unscrew anything from the taps). There are about 30-35 meters to blow, it went practically once twice. Traces of water probably remain, but I'm pretty sure nothing will happen. We'll see after winter.

For example, I use nitrogen cylinders for such matters. I just have a set of 250 bar cylinders and a nitrogen reducer

I wrote the solution above, I close the topic.