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## What is the minimum surface interval required between a dive to 18?

NAUI recommends a SIT of **at least one hour** between dives. Use the next greater dive time if your dive is particularly cold or strenuous. For example, if you do a dive to 18 meters (60 feet) for 22 minutes, the 22 minutes rounds to 25 minutes.

## What is the no decompression limit for 60 feet 18 Metres )?

What is the No Decompression Limit for 60 feet? The NDL or No-Stop time for 60 feet / 18 meters is **56 minutes** according to the Recreational Dive Planner table. On a Suunto dive computer using their algorithm, the NDL is 51 minutes for your first dive.

## How long does it take to dive 40 meters?

No-stop limits

40 meters is about as deep as one can dive on air while still having somewhat of a bottom time (albeit **less than 10 minutes**, with a safety stop strongly recommended) before decompression stops are required.

## How deep can you dive without decompression?

There’s a bit of physics and physiology involved in a full explanation, but the short answer is: **40 metres/130 feet** is the deepest you can dive without having to perform decompression stops on your way back to the surface.

## At what depth do divers need to decompress?

At depths greater **than 40 metres (130 ft)**, a diver may have only a few minutes at the deepest part of the dive before decompression stops are needed. In the event of an emergency, the diver cannot make an immediate ascent to the surface without risking decompression sickness.

## What is the minimum surface interval required?

To determine the minimum required surface interval, find the required letter group on the left side of the table and follow that row to the right until you locate the column for the diver’s end-of-dive letter group, which was “D.” And we can see that the divers need a surface interval of **at least 2 hours and 39 minutes** …

It is **OK** to share a computer with your dive buddy. You should perform a safety stop at 5 meter for 3 to 5 minutes on every dive.

## How long can you dive at 50 feet?

BSAC and PADI no-stop dive times:

12 metres (40 feet) dive depth: BSAC no decompression time limit 122 minutes (PADI Tables 140 minutes). 15 metres (50 feet) dive depth: BSAC no decompression time limit of **74 minutes** (PADI Tables 80 minutes).

## How long can a scuba diver stay at 100 feet?

Nitrogen is absorbed more readily at deeper depths, making how long can you SCUBA dive dependent on how deep you are. For instance, the time you can spend SCUBA diving at 100 feet is **20 minutes** whereas if you limit your dive depth to 35 feet, you could stay for 205 minutes (if you had enough air).

## What is the no decompression limit for a dive to 20 feet?

No Decompression Limits (NDL)

Depth | Pressure | Oxygen (%) |
---|---|---|

10 m/33 ft. | 2 bar/ata | 21% |

20 m/66 ft. | 3 bar/ata | 21% |

30 m/99 ft. | 4 bar/ata | 21% |

40 m/132 ft. | 5 bar/ata | 21% |

## Can you fart while diving?

**Farting is possible while scuba diving** but not advisable because: … An underwater fart will shoot you up to the surface like a missile which can cause decompression sickness. The acoustic wave of the underwater fart explosion can disorient your fellow divers.