Irrigation planning / garden planning

Good evening everyone,

I am a newbie here in the forum and am currently building a single-family house (180m² living space). Since I am doing a few things in the house myself (including all the electrical work incl. [URL_INTERNA=https://www.hausbau-forum.de/threads/knx-erfahrungen-installation-in-einfamilienhaus.32644/

KNX[/URL_INTERNA]) the garden / irrigation planning has so far fallen behind due to lack of time – here I hope for support from you (but I have done some preliminary work).

First of all, you will find the necessary external views and a floor plan attached for better understanding (together with my notes). The house is 5m away from the street (which is only supposed to be completed around the end of 2021 and will still be raised by 30cm compared to the construction road – therefore I will postpone the execution of the front garden until then – however, I will already pave the driveway in summer).

The interior plastering will be done next week and the planned completion is at the end of May – so I want to deal with the garden and irrigation planning in the near future. I want to lay out the garden and terrace and path around the house (incl. hedge up to the 7m boundary in the west) as well as the entire lawn area this spring/summer. In the west, I would then stop at the 5m boundary and wait with the construction of the front garden until the final street is laid – BUT I would like to install the irrigation for the front now already under the lawn.

In the workshop room behind the garage, I have laid a 100mm KG pipe between the garage and garden – my idea was to have the water connection installed in the garage (separate water meter) and then pull the water and the necessary cables between garage and garden through the empty conduit, so that an orange-marked position of the "irrigation control center" results.

What do I want to water:

Everything – so both the entire lawn area, the hedge, the beds in the garden, as well as the not-yet-planned beds in the front garden. In my research, I came across the irrigation systems from Hunter (and would initially like to focus on planning with them).

I want to control the valves for irrigation presumably via KNX (24V AC as well as a separate actuator necessary).

Where I need help (I have read the manuals including those from Hunter – but I lack practical experience and hope for your support here):

Planning the irrigation / practical experience:


[*]How would you concretely do the irrigation for the attached garden plan?
[LIST]
[*]Ideally with a list of materials, e.g. how many zones etc...


[*]Since I have an appointment with the sanitary installer on Wednesday – should I tell him that I want a 1-inch outside connection for the outdoor water right away (or is 3/4 inch enough)?
[*]Is it possible (pressure loss) to water the beds in the front garden starting from the irrigation control center behind the house?
[*]Do you have further comments on the garden planning?

The terrace as well as the path around the house will most likely be 60x60x2 ceramic tiles laid on drainage mortar (or bedding mortar with binding agent with gravel and adhesive). The house itself is 20cm higher than the garage – we want to go from the living room to the terrace almost level.

Where we still have no good idea/solution: How to design the paving behind the garage up to the house – the almost 70cm left from the garage door to the house should have the level of the terrace (almost too tight to place a grill there – that would actually be a great position to put a grill – but here a step to the terrace would be very difficult).

I hope that with my first post here I was able to convey my questions and I look forward to your comments.

Daniel

Regarding irrigation, I can recommend having it planned.

There are various websites on the internet that do this for free if you send them the garden plan.
You will then receive an offer from the respective provider with all the necessary parts.

We did this through ks-Rechtsanwältin and can recommend it. The planning cost a bit there, but it was credited upon ordering.
The parts that were too many, we were able to return after completing the work and got the costs back for them.

P.S.
We installed:
Irrigation for 2 hedge sections, 2 perennial beds, 1 raised bed, as well as 2 lines for the lawn.
All parts from Hunter. The irrigation controller we used is the new Hydrawise Pro-HC with weather forecast etc. Brilliant device.
I did not connect KNX, as it is unnecessary given the prices.

P.P.S.
Helpful for us was also the "Roboter-Forum" in the subcategory "Rasenpflege/Bewässerung“

Irrigation can be planned well by yourself. There are already some topics about this here in the forum. I quickly made a plan for two people as well: A few points on this: - you want to irrigate directly from the fresh water line. That means your water meter in the house is the bottleneck. What size do you have installed? A larger line to the outside results in less pressure loss, so go for 1 inch. Depending on the water meter, you get 1.5 m3/h to 1.8 m3/h through. That’s not very much, so the circuits will be rather small - irrigation in the front yard is no problem - irrigation with KNX is not particularly useful here. You would be better off with a Hunter Hydrawise irrigation controller. The only advantage of KNX is that you could run multiple circuits simultaneously. But that does not help you at all since you do not have enough water in the line... - with your 100 mm pipe, you can only run the PE-HD line through short distances. Hope this is a straight run otherwise it gets difficult. Take your floor plan and the datasheets from Hunter and start in the corners. The sprinklers must be able to reach each other. For the hedges, I would plan one line for each side. Simply include the front yard in your plan. At spots that will only be planted later, lay the line and put a cap on it. Once you have placed all sprinklers, group them into sensible groups using a spreadsheet. The flow per hour can be taken from the datasheets. At about 1.5 m3/h the circuit is used up. This way you go through the whole garden and get your number of circuits. It’s not particularly complicated for you. For the range information from Hunter, only calculate with 90%. Buy a valve box with compressed air connection. It greatly facilitates the installation.

From my point of view, you have found a likable, helpful, and pragmatic expert in . He has already "happily watered" many here in the forum. Be nice to him.