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Editing 40d:Reservoir
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A '''reservoir''' or '''cistern''' is merely a holding area for storing water needed for drinking or [[trap design#Water traps|other purposes]]*. This lets you take advantage of lakes without tapping all of it at once, or to get water from a [[river]] without flooding the whole fortress. You can get water from the [[ocean]], but it's not drinkable without either a [[well]] or [[Pump#Desalinization|desalinization]]. | A '''reservoir''' or '''cistern''' is merely a holding area for storing water needed for drinking or [[trap design#Water traps|other purposes]]*. This lets you take advantage of lakes without tapping all of it at once, or to get water from a [[river]] without flooding the whole fortress. You can get water from the [[ocean]], but it's not drinkable without either a [[well]] or [[Pump#Desalinization|desalinization]]. | ||
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Plan carefully where you want the water come from, and where you want it to go. Building next to a body of water is easiest. You can have the water flow down a staircase, or make channels for the water. Block off any corridors that connect to the water output. A simple [[door]] right next to flow will prevent water from pooling in the corridor. | Plan carefully where you want the water come from, and where you want it to go. Building next to a body of water is easiest. You can have the water flow down a staircase, or make channels for the water. Block off any corridors that connect to the water output. A simple [[door]] right next to flow will prevent water from pooling in the corridor. | ||
| − | Also, you need to place two [[lever | + | Also, you need to place two [[lever]]s to control the flow of water. It is easy to forget which lever connects to what. You might want to build a lever room nearby. Build levers parallel to the floodgates. |
==Digging== | ==Digging== | ||
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Mine out an area like this, one level below the ground. The diagonal kink is important! The area above it will be the reservoir proper. It can be any size you like, but make sure it only connects to the rest of your fortress through that diagonal opening. Water will flow out from below that kink, so make sure there's no hallways below that you don't want flooded. | Mine out an area like this, one level below the ground. The diagonal kink is important! The area above it will be the reservoir proper. It can be any size you like, but make sure it only connects to the rest of your fortress through that diagonal opening. Water will flow out from below that kink, so make sure there's no hallways below that you don't want flooded. | ||
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==Floodgates== | ==Floodgates== | ||
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Build the upper floodgate at the very end of the reservoir chamber. Once it's in place, connect it to a lever. | Build the upper floodgate at the very end of the reservoir chamber. Once it's in place, connect it to a lever. | ||
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Once the first floodgate has been connected, build the other floodgate just behind the kink. Dwarves don't build on the diagonal, so this keeps your dwarves from trapping themselves. Connect it to another lever. | Once the first floodgate has been connected, build the other floodgate just behind the kink. Dwarves don't build on the diagonal, so this keeps your dwarves from trapping themselves. Connect it to another lever. | ||
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==Input channel== | ==Input channel== | ||
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From above, channel into the water source. | From above, channel into the water source. | ||
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==Output channel== | ==Output channel== | ||
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You can have the water just flow down the stairs, or dig a channel just outside the outer floodgate. This cuts off access to the reservoir, so you can't re-jigger the floodgates. Hopefully, you will not need to, but you can build a horizontal [[grate]] or [[bars|floor bars]] to make the channel walkable but still allow water to flow through. | You can have the water just flow down the stairs, or dig a channel just outside the outer floodgate. This cuts off access to the reservoir, so you can't re-jigger the floodgates. Hopefully, you will not need to, but you can build a horizontal [[grate]] or [[bars|floor bars]] to make the channel walkable but still allow water to flow through. | ||
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=Variations= | =Variations= | ||
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If for some reason you need to build a reservoir deeper underground, or further from the water source, you can connect the water source to the first floodgate by a stairway or tunnel. Add another kink before the first floodgate to avoid trapped dwarves. | If for some reason you need to build a reservoir deeper underground, or further from the water source, you can connect the water source to the first floodgate by a stairway or tunnel. Add another kink before the first floodgate to avoid trapped dwarves. | ||
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==Customization== | ==Customization== | ||
| − | While the basics of a cistern are very plain, one can apply a great deal of personalization to your cistern. It can be completely cube shaped, rectangular, or circular. You can have a floodgate or hatchcover leading to a drain, perhaps a [[chasm]], to allow you to drain and maintain your cistern. You may also want to [[road|pave]] the floor in case you have uncovered an [[underground river]] or pool, in order to prevent the growth of [[tower-cap | + | While the basics of a cistern are very plain, one can apply a great deal of personalization to your cistern. It can be completely cube shaped, rectangular, or circular. You can have a floodgate or hatchcover leading to a drain, perhaps a [[chasm]], to allow you to drain and maintain your cistern. You may also want to [[road|pave]] the floor in case you have uncovered an [[underground river]] or pool, in order to prevent the growth of [[tower-cap]]s. Finally, you might want to use [[pressure plate]]s to automate the intake floodgate, keeping the cistern full (but not overflowing). |
For detailed instructions on setting up a working well, see the [[well guide]]. | For detailed instructions on setting up a working well, see the [[well guide]]. | ||
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===Fish-proofing=== | ===Fish-proofing=== | ||
| − | Draining from a large body of water can allow large and potentially dangerous aquatic creatures into your fortress. Installing a [[grate]] or [[bars]] across the water flow can keep them out. Note that bars will allow [[vermin]]-size creatures though, and grates do not. You can use [[fortification | + | Draining from a large body of water can allow large and potentially dangerous aquatic creatures into your fortress. Installing a [[grate]] or [[bars]] across the water flow can keep them out. Note that bars will allow [[vermin]]-size creatures though, and grates do not. You can use [[fortification]]s too, but this slows down the flow of water. |
===Re-directing water flows=== | ===Re-directing water flows=== | ||
| − | It's possible to re-configure a reservoir to channel water in a new direction. You can construct walls and floors to block water, or place [[door | + | It's possible to re-configure a reservoir to channel water in a new direction. You can construct walls and floors to block water, or place [[door]]s and [[hatch]]es. |
====Doors vs floodgates vs drawbridges==== | ====Doors vs floodgates vs drawbridges==== | ||
| − | + | Currently, you can use [[door]]s and [[floodgate]]s interchangeably. {{version|0.28.181.40d}} Drawbridges work as well - when they're raised, they block any passage they sit in front of, and this includes the passage of fluides. (This is expected to change in the future, so your doors might start leaking in the future.) | |
==Magma Reservoirs== | ==Magma Reservoirs== | ||
| − | You can move [[magma]] around using the same basic principles. [[Construction | + | You can move [[magma]] around using the same basic principles. [[Construction]]s (walls, ramps, etc) do not need to be [[magma safe]], nor do pumps (so long as they are not submerged) - glass or wooden walls and pump components (blocks, pipes and screws) are fine*. Any [[furniture]] (specifically including doors, floodgates, and hatch covers) and [[mechanism]]s that will be submerged or "opened" to magma flow must be of [[magma proof]] materials. |
:''(* Or usually are - it has been reported that long exposure to the heat of magma, from being directly adjacent to a large pool of it, will damage screw pumps to the point that they deconstruct. Not all players observe this, so more research is required.)'' | :''(* Or usually are - it has been reported that long exposure to the heat of magma, from being directly adjacent to a large pool of it, will damage screw pumps to the point that they deconstruct. Not all players observe this, so more research is required.)'' | ||
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| + | [[Category:Design]] | ||