Answers.Body: <p>The <a href="http://www.legoland.co.uk/Explore/Whats-New/Atlantis-Submarine-Voyage/" rel="nofollow noreferrer">Atlantis Submarine Voyage</a> ride at LEGOLAND Windsor has almost 100 models (albeit glued together) submerged in a 1,000,000 litre tank with 'upto 50 species of rare sharks, rays and tropical fish'. If LEGO bricks can withstand those conditions, I think you'll be fine.</p>
  
  <p><img src="https://i.sstatic.net/h3FYm.jpg" alt="enter image description here"></p>
  
  <p>Most of these models are quite large (and heavy), so you may need to weigh down or attach some of your models to the bottom of the tub to stop them floating. </p>
  
  <p>Unlike LEGOLAND, you won't have to worry about the upkeep of plants and fishes. I would suggest you replace the water every week or whenever you see it is getting too stagnant. </p>
  
  <hr>
  
  <p><strong>Exceptions</strong> </p>
  
  <p>Apart from the traditional plastic LEGO brick, <strong>electronics and batteries should never be submerged in water</strong>. Other 'non-traditional' parts including <a href="http://www.bricklink.com/catalogList.asp?catType=P&amp;catString=162" rel="nofollow noreferrer">Cloth</a>, <a href="http://www.bricklink.com/catalogList.asp?catType=P&amp;catString=234" rel="nofollow noreferrer">Foam</a>, <a href="http://www.bricklink.com/catalogList.asp?catType=P&amp;catString=231" rel="nofollow noreferrer">String</a>, <a href="http://www.bricklink.com/catalogList.asp?catType=P&amp;catString=246" rel="nofollow noreferrer">Paper</a> and <a href="http://www.bricklink.com/catalogList.asp?catType=P&amp;catString=229" rel="nofollow noreferrer">Rubber Bands</a> may deteriorate more rapidly when submerged (depending on the water contents) and <a href="http://www.bricklink.com/catalogList.asp?catType=P&amp;catString=160" rel="nofollow noreferrer">stickers</a> will very likely lose their adhesive and peel off.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-07-09T16:55:56.280Z
Answers.LastActivityDate: 2017-11-30T08:27:49.837Z
Answers.LastEditDate: 2017-11-30T08:27:49.837Z
Answers.UserDisplayName: Ambo100
Answers.Body: <p>Basic LEGO elements won't get damaged by water, however depending on the condition of your water source, some residue may build up on the elements after prolonged immersion. So if you are thinking about keeping them immersed for a longer time, I would suggest using distilled water.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-07-09T15:07:50.587Z
Answers.LastActivityDate: 2015-07-09T15:07:50.587Z
Answers.UserDisplayName: TheBrickBlogger
Answers.Body: <p>The LEGO bricks themselves will be fine, but if you're adding fish and turning this into an aquarium setting you may need to perform some periodic maintenance on them to keep them looking nice... but lots of people have used LEGOs for aquarium decor with great results.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-09-15T20:26:05.503Z
Answers.LastActivityDate: 2015-09-15T20:26:05.503Z
Answers.UserDisplayName: TalkAboutTheSpleen
Answers.Body: <p>Personally, I have dunked all the LEGO models I created (Ships and planes) into water to see if they float properly, and besides that water gets into every hole, there is not problem with LEGO bricks and water.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-11-17T19:19:57.970Z
Answers.LastActivityDate: 2015-11-18T01:13:56.670Z
Answers.LastEditDate: 2015-11-18T01:13:56.670Z
Answers.UserDisplayName: SMS von der Tann
Answers.Body: <p>Nothing will happen except that some pieces might float. By the way lego is waterproof, so it's okay to keep it in water.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-11-06T08:10:09.483Z
Answers.LastActivityDate: 2015-11-06T08:10:09.483Z
Answers.UserDisplayName: Samuel L.
Answers.Body: <p>As long as you don't want an air bubble, it should be fine. Normal bricks do not create an air tight seal without glue.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-09-10T21:05:52.280Z
Answers.LastActivityDate: 2015-09-10T21:05:52.280Z
Answers.UserDisplayName: megabyte264
Answers.Body: <p>I still have my cargo ship LEGO from 25 - 30 years ago.   It was designed to be immersed in water.   My daughter now uses it daily as a bath toy.  </p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-07-11T22:46:08.177Z
Answers.Text: Cheers, hope she treats it well!
Answers.UserDisplayName: DatLegoguy7
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-07-10T22:25:38.140Z
Answers.LastActivityDate: 2015-07-10T22:25:38.140Z
Answers.UserDisplayName: eat-sleep-code
Answers.Body: <p>Not much. LEGO specifically designs some models to float, using a solid hull piece. Unless you build a water-tight boat, the pieces will sink, but they'll be fine.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-07-09T10:58:55.730Z
Answers.LastActivityDate: 2015-07-09T16:53:25.570Z
Answers.LastEditDate: 2015-07-09T16:53:25.570Z
Answers.UserDisplayName: Nuclear Hoagie
Body: <p>I'm thinking of using real water in my LEGO City and putting the Atlantis and deep sea exploration sets at the bottom of the tub of water, but I don't know what will happen to LEGO when put in water. And maybe having goldfish at the bottom</p>
  
Tags: <building><moc><water>
Title: What will happen if I submerge LEGO in water?
UserDisplayName: DatLegoguy7
ThreadText: # What will happen if I submerge LEGO in water?
  
  (Asked by: username_0 on 2015-07-09)
  
  I'm thinking of using real water in my LEGO City and putting the Atlantis and deep sea exploration sets at the bottom of the tub of water, but I don't know what will happen to LEGO when put in water. And maybe having goldfish at the bottom
  
  **Tags:** building, moc, water
  
  ---
  
  ## 8 answers
  
  ### Answer by username_1 on 2015-07-09. Score: 14
  
  The [Atlantis Submarine Voyage](http://www.legoland.co.uk/Explore/Whats-New/Atlantis-Submarine-Voyage/) ride at LEGOLAND Windsor has almost 100 models (albeit glued together) submerged in a 1,000,000 litre tank with 'upto 50 species of rare sharks, rays and tropical fish'. If LEGO bricks can withstand those conditions, I think you'll be fine.
  
  ![enter image description here](https://i.sstatic.net/h3FYm.jpg)
  
  Most of these models are quite large (and heavy), so you may need to weigh down or attach some of your models to the bottom of the tub to stop them floating.
  
  Unlike LEGOLAND, you won't have to worry about the upkeep of plants and fishes. I would suggest you replace the water every week or whenever you see it is getting too stagnant.
  
  ---
  
  **Exceptions**
  
  Apart from the traditional plastic LEGO brick, **electronics and batteries should never be submerged in water**. Other 'non-traditional' parts including [Cloth](http://www.bricklink.com/catalogList.asp?catType=P&catString=162), [Foam](http://www.bricklink.com/catalogList.asp?catType=P&catString=234), [String](http://www.bricklink.com/catalogList.asp?catType=P&catString=231), [Paper](http://www.bricklink.com/catalogList.asp?catType=P&catString=246) and [Rubber Bands](http://www.bricklink.com/catalogList.asp?catType=P&catString=229) may deteriorate more rapidly when submerged (depending on the water contents) and [stickers](http://www.bricklink.com/catalogList.asp?catType=P&catString=160) will very likely lose their adhesive and peel off.
  
  
  ---
  
  ### Answer by username_2 on 2015-07-09. Score: 7
  
  Basic LEGO elements won't get damaged by water, however depending on the condition of your water source, some residue may build up on the elements after prolonged immersion. So if you are thinking about keeping them immersed for a longer time, I would suggest using distilled water.
  
  
  ---
  
  ### Answer by username_3 on 2015-09-15. Score: 1
  
  The LEGO bricks themselves will be fine, but if you're adding fish and turning this into an aquarium setting you may need to perform some periodic maintenance on them to keep them looking nice... but lots of people have used LEGOs for aquarium decor with great results.
  
  
  ---
  
  ### Answer by username_4 on 2015-11-17. Score: 0
  
  Personally, I have dunked all the LEGO models I created (Ships and planes) into water to see if they float properly, and besides that water gets into every hole, there is not problem with LEGO bricks and water.
  
  
  ---
  
  ### Answer by username_5 on 2015-11-06. Score: 0
  
  Nothing will happen except that some pieces might float. By the way lego is waterproof, so it's okay to keep it in water.
  
  
  ---
  
  ### Answer by username_6 on 2015-09-10. Score: 0
  
  As long as you don't want an air bubble, it should be fine. Normal bricks do not create an air tight seal without glue.
  
  
  ---
  
  ### Answer by username_7 on 2015-07-10. Score: 0
  
  I still have my cargo ship LEGO from 25 - 30 years ago. It was designed to be immersed in water. My daughter now uses it daily as a bath toy.
  
  > **Comments:**
  > **username_0**: Cheers, hope she treats it well!  
  
  ---
  
  ### Answer by username_8 on 2015-07-09. Score: 0
  
  Not much. LEGO specifically designs some models to float, using a solid hull piece. Unless you build a water-tight boat, the pieces will sink, but they'll be fine.
  
  
  ---
  
  