Hello everyone,
I tried to make the title as easy to find as possible since I couldn’t find any information during my search.
We want to have a well for the outdoor area and its irrigation system.
I only have a basic understanding of this and am looking for your advice.
Which systems make sense, and what should such a system cost?
I contacted the company "Brunnen-König" here in the Hannover area. The manager was very friendly and helpful. Unfortunately, I couldn’t make much sense of their system (submersible pump).
Is there anything that can go wrong with this method, or is it a good approach? What should something like this cost?
Based on the size of our property and the fact that we want an irrigation system, we chose the Package-L, which also includes the pump.
Groundwater can be found here at a depth of about 4 meters (13 feet).
Thanks in advance.
I tried to make the title as easy to find as possible since I couldn’t find any information during my search.
We want to have a well for the outdoor area and its irrigation system.
I only have a basic understanding of this and am looking for your advice.
Which systems make sense, and what should such a system cost?
I contacted the company "Brunnen-König" here in the Hannover area. The manager was very friendly and helpful. Unfortunately, I couldn’t make much sense of their system (submersible pump).
Is there anything that can go wrong with this method, or is it a good approach? What should something like this cost?
Based on the size of our property and the fact that we want an irrigation system, we chose the Package-L, which also includes the pump.
Groundwater can be found here at a depth of about 4 meters (13 feet).
Thanks in advance.
Chriscross13 Sep 2016 08:42Yesterday, I learned that we need a rainwater infiltration system. This raises the question of whether we should install a cistern underground to have a small water storage. This would cover the hot summer days, and the rest would come from the tap.
@Chriscross
If you are required to install an infiltration system, this would definitely be an option.
You have already found the current thread on this topic.
You should clarify or check whether all the rainwater must be infiltrated, or if you can possibly direct an overflow from the infiltration system or cistern into the sewer system.
from the other thread:
Well – usually these requirements are specified in the development plan. Since this is often provided before purchasing the plot (which you might have been able to inquire about), you could have informed yourself and included it in the budget. (know-it-all mode off)
From my point of view, this would resolve the issue with the well anyway.
If you are required to install an infiltration system, this would definitely be an option.
You have already found the current thread on this topic.
You should clarify or check whether all the rainwater must be infiltrated, or if you can possibly direct an overflow from the infiltration system or cistern into the sewer system.
from the other thread:
Chriscross schrieb:
Even when you always plan with a buffer, it’s money that eventually is missing somewhere again
Well – usually these requirements are specified in the development plan. Since this is often provided before purchasing the plot (which you might have been able to inquire about), you could have informed yourself and included it in the budget. (know-it-all mode off)
From my point of view, this would resolve the issue with the well anyway.
Infiltration and cisterns (retention) should initially be considered separately. Perhaps when installing the infiltration system, for example if it is constructed underground as a soakaway, some minor synergies could be achieved when placing the cistern. However, I am still not fully convinced of this. See below.
Alex85 schrieb:
This means the well belongs in the same category as a cistern or a domestic water system: either it is already there or prepared for other reasons, otherwise it is not financially worthwhile. Water is simply too cheap.
Chriscross15 Sep 2016 10:27In response to my inquiry about the costs associated with using a pump, I received the following reply from the local authority today (which sounds very reasonable and cheaper than an external water meter to me):
"...according to § 46 of the Water Resources Act (WHG) and § 86 of the Lower Saxony Water Act (NWG), extracting groundwater for garden irrigation in small quantities is permitted without a license. A small quantity in this context means extracting up to 10 cubic meters per day. Therefore, no fees apply...."
What are your thoughts on this?
"...according to § 46 of the Water Resources Act (WHG) and § 86 of the Lower Saxony Water Act (NWG), extracting groundwater for garden irrigation in small quantities is permitted without a license. A small quantity in this context means extracting up to 10 cubic meters per day. Therefore, no fees apply...."
What are your thoughts on this?
@Chriscross
That sounds good so far, since you will NEVER withdraw 10 m³ per day (we use about that much water per month).
The cost for well construction and electricity for the pump remains unchanged regardless.
The question remains: Would you possibly need to document the amount withdrawn? I can’t really imagine that being necessary for a private household where obviously less than 10 m³ (about 350 cubic feet) per day is used.
That sounds good so far, since you will NEVER withdraw 10 m³ per day (we use about that much water per month).
The cost for well construction and electricity for the pump remains unchanged regardless.
The question remains: Would you possibly need to document the amount withdrawn? I can’t really imagine that being necessary for a private household where obviously less than 10 m³ (about 350 cubic feet) per day is used.
As already mentioned, a pump, cistern, and similar installations only make sense if you can carry out the work yourself cost-effectively or if everything is already in place. More often, it's the idea of higher ongoing additional costs that discourages people from pumping tap water into their garden.
A 5sqm (54 sq ft) plastic basin is dug into the garden at a material cost of around 1500€ (plus labor costs if directly integrated into a larger project such as house drainage), along with a garden pump and piping, just to then use the 5sqm basin during the summer and still end up switching back to tap water because it hasn’t rained in the meantime (a common occurrence in summer). Even if everything works perfectly and you can always draw water from the basin, you will hardly save more than 5–10sqm (54–108 sq ft) per month (considering it must have rained for the basin to refill, which means less watering effort). Over four months, this adds up to about 40sqm (430 sq ft) saved per year. Freshwater costs about 1€ per sqm (and around 3€ for wastewater disposal). That means you save about 40€ per year. With the 3000€ investment for a 5sqm unit including the pump, etc., you could draw water directly from the tap for 75 years.
Additional advantages of using tap water: no pump blockages, no pump maintenance (and possible related costs), tap water quality (you can drink a sip or easily fill a paddling pool), and so on.
Therefore, plan for a meter on your external water connection to save on wastewater fees. It may add about 40€ per year in ongoing costs, but you can save several thousand euros overall.
A 5sqm (54 sq ft) plastic basin is dug into the garden at a material cost of around 1500€ (plus labor costs if directly integrated into a larger project such as house drainage), along with a garden pump and piping, just to then use the 5sqm basin during the summer and still end up switching back to tap water because it hasn’t rained in the meantime (a common occurrence in summer). Even if everything works perfectly and you can always draw water from the basin, you will hardly save more than 5–10sqm (54–108 sq ft) per month (considering it must have rained for the basin to refill, which means less watering effort). Over four months, this adds up to about 40sqm (430 sq ft) saved per year. Freshwater costs about 1€ per sqm (and around 3€ for wastewater disposal). That means you save about 40€ per year. With the 3000€ investment for a 5sqm unit including the pump, etc., you could draw water directly from the tap for 75 years.
Additional advantages of using tap water: no pump blockages, no pump maintenance (and possible related costs), tap water quality (you can drink a sip or easily fill a paddling pool), and so on.
Therefore, plan for a meter on your external water connection to save on wastewater fees. It may add about 40€ per year in ongoing costs, but you can save several thousand euros overall.
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