Question

What should you do to prevent the discharge of untreated waste from a type i or type ii marine sanitation device (msd)?

Answer 1

Answer:

To treat the discharge of untreated waste from a type i or type ii marine sanitation device the following steps should be taken into account;

The “Y” valve must be secured to prevent accidental illegal discharge. This can be done by placing a lock or non-reusable seal on the “Y” valve or by taking the handle off the “Y” valve. Only treated sewage from an approved MSD may be discharged directly overboard.

Answer 2

The Y valve should be secured in order to prevent accidental illegal discharge.

Further Explanation:

Recreational boat with permanentally installed toilet facilities should have an operational MSD on board. These permanently installed device should be certified by U.S. Coast Guard.

There are various types of MSD:

1. Type I: It is that type of treatment device which uses a physical or a chemical based system. The treated waste can be released after the treatment. It is legal for vessel below 65 feet

2. Type II: It is a type of treatment that makes use of aerobic digestion based system. The treated waste can be discharged after the treatment. They are often seen on commercial vessel. They are legal for all type of vessel.

3. Type III: it is a holding tank that restricts the overboard release of treated or untreated sewage. They are legal for all type of vessel

MSD are fixed between the toilet and the Y valve and the later should be secured in order to stop the accidental illegal discharge. The blocking can be accomplished by using a non-reusable seal on the Y valve.

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Answer detail:

Grade: College Biology

Subject: Biology

Chapter: Pollution

Keywords:

Recreational boat, marine sanitation device , maceration, chlorination, aerobic digestion, Y valve, illegal discharge.